Home / 125,033.10-172,366.32-89,160.90

Finding the Fourth Proportional to 125,033.10, 172,366.32 and 89,160.90

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Solution

The fourth proportional to 125,033.10, 172,366.32 and 89,160.90 is: 122,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,033.10 : 172,366.32 = 89,160.90 : x
  2. Step 2: Convert to fraction form
    125,033.10/172,366.32 = 89,160.90/x
  3. Step 3: Cross multiply
    125,033.10x = 172,366.32 × 89,160.90
  4. Step 4: Simplify right side
    125,033.10x = 15,368,336,220.89
  5. Step 5: Solve for x
    x = 15,368,336,220.89/125,033.10
  6. Step 6: Final answer
    x = 122,914.14

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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.