Home / 103,859,156.20-142,575,107.26-89,149,284.88

Finding the Fourth Proportional to 103,859,156.20, 142,575,107.26 and 89,149,284.88

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Solution

The fourth proportional to 103,859,156.20, 142,575,107.26 and 89,149,284.88 is: 122,381,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859,156.20 : 142,575,107.26 = 89,149,284.88 : x
  2. Step 2: Convert to fraction form
    103,859,156.20/142,575,107.26 = 89,149,284.88/x
  3. Step 3: Cross multiply
    103,859,156.20x = 142,575,107.26 × 89,149,284.88
  4. Step 4: Simplify right side
    103,859,156.20x = 12,710,468,853,918,294
  5. Step 5: Solve for x
    x = 12,710,468,853,918,294/103,859,156.20
  6. Step 6: Final answer
    x = 122,381,784.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.