Home / 121,929.35-182,657.39-89,850.21

Finding the Fourth Proportional to 121,929.35, 182,657.39 and 89,850.21

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Solution

The fourth proportional to 121,929.35, 182,657.39 and 89,850.21 is: 134,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,929.35 : 182,657.39 = 89,850.21 : x
  2. Step 2: Convert to fraction form
    121,929.35/182,657.39 = 89,850.21/x
  3. Step 3: Cross multiply
    121,929.35x = 182,657.39 × 89,850.21
  4. Step 4: Simplify right side
    121,929.35x = 16,411,804,400.30
  5. Step 5: Solve for x
    x = 16,411,804,400.30/121,929.35
  6. Step 6: Final answer
    x = 134,600.94

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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.