Home / 103,123,733.31-142,685,487.90-89,920,442.27

Finding the Fourth Proportional to 103,123,733.31, 142,685,487.90 and 89,920,442.27

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Solution

The fourth proportional to 103,123,733.31, 142,685,487.90 and 89,920,442.27 is: 124,416,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,123,733.31 : 142,685,487.90 = 89,920,442.27 : x
  2. Step 2: Convert to fraction form
    103,123,733.31/142,685,487.90 = 89,920,442.27/x
  3. Step 3: Cross multiply
    103,123,733.31x = 142,685,487.90 × 89,920,442.27
  4. Step 4: Simplify right side
    103,123,733.31x = 12,830,342,177,032,842
  5. Step 5: Solve for x
    x = 12,830,342,177,032,842/103,123,733.31
  6. Step 6: Final answer
    x = 124,416,967.51

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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.