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Finding the Fourth Proportional to 117,779, 162,535.02 and 67,507.16

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Solution

The fourth proportional to 117,779, 162,535.02 and 67,507.16 is: 93,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,779 : 162,535.02 = 67,507.16 : x
  2. Step 2: Convert to fraction form
    117,779/162,535.02 = 67,507.16/x
  3. Step 3: Cross multiply
    117,779x = 162,535.02 × 67,507.16
  4. Step 4: Simplify right side
    117,779x = 10,972,277,600.74
  5. Step 5: Solve for x
    x = 10,972,277,600.74/117,779
  6. Step 6: Final answer
    x = 93,159.88

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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.