Home / 103,491.90-142,781.40-67,702.32

Finding the Fourth Proportional to 103,491.90, 142,781.40 and 67,702.32

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Solution

The fourth proportional to 103,491.90, 142,781.40 and 67,702.32 is: 93,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,491.90 : 142,781.40 = 67,702.32 : x
  2. Step 2: Convert to fraction form
    103,491.90/142,781.40 = 67,702.32/x
  3. Step 3: Cross multiply
    103,491.90x = 142,781.40 × 67,702.32
  4. Step 4: Simplify right side
    103,491.90x = 9,666,632,032.85
  5. Step 5: Solve for x
    x = 9,666,632,032.85/103,491.90
  6. Step 6: Final answer
    x = 93,404.72

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1.5x scale

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.