Home / 134,138.88-185,117.04-76,787.52

Finding the Fourth Proportional to 134,138.88, 185,117.04 and 76,787.52

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Solution

The fourth proportional to 134,138.88, 185,117.04 and 76,787.52 is: 105,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138.88 : 185,117.04 = 76,787.52 : x
  2. Step 2: Convert to fraction form
    134,138.88/185,117.04 = 76,787.52/x
  3. Step 3: Cross multiply
    134,138.88x = 185,117.04 × 76,787.52
  4. Step 4: Simplify right side
    134,138.88x = 14,214,678,411.34
  5. Step 5: Solve for x
    x = 14,214,678,411.34/134,138.88
  6. Step 6: Final answer
    x = 105,969.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.