Home / 121,708,787.92-182,126,789.70-105,370,272.16

Finding the Fourth Proportional to 121,708,787.92, 182,126,789.70 and 105,370,272.16

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Solution

The fourth proportional to 121,708,787.92, 182,126,789.70 and 105,370,272.16 is: 157,677,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,708,787.92 : 182,126,789.70 = 105,370,272.16 : x
  2. Step 2: Convert to fraction form
    121,708,787.92/182,126,789.70 = 105,370,272.16/x
  3. Step 3: Cross multiply
    121,708,787.92x = 182,126,789.70 × 105,370,272.16
  4. Step 4: Simplify right side
    121,708,787.92x = 19,190,749,398,316,084
  5. Step 5: Solve for x
    x = 19,190,749,398,316,084/121,708,787.92
  6. Step 6: Final answer
    x = 157,677,598.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.