Home / 121,913.12-182,830.56-38,787.68

Finding the Fourth Proportional to 121,913.12, 182,830.56 and 38,787.68

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Solution

The fourth proportional to 121,913.12, 182,830.56 and 38,787.68 is: 58,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,913.12 : 182,830.56 = 38,787.68 : x
  2. Step 2: Convert to fraction form
    121,913.12/182,830.56 = 38,787.68/x
  3. Step 3: Cross multiply
    121,913.12x = 182,830.56 × 38,787.68
  4. Step 4: Simplify right side
    121,913.12x = 7,091,573,255.50
  5. Step 5: Solve for x
    x = 7,091,573,255.50/121,913.12
  6. Step 6: Final answer
    x = 58,169.07

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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.