Home / 125,032.10-172,364.94-89,159.90

Finding the Fourth Proportional to 125,032.10, 172,364.94 and 89,159.90

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Solution

The fourth proportional to 125,032.10, 172,364.94 and 89,159.90 is: 122,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,032.10 : 172,364.94 = 89,159.90 : x
  2. Step 2: Convert to fraction form
    125,032.10/172,364.94 = 89,159.90/x
  3. Step 3: Cross multiply
    125,032.10x = 172,364.94 × 89,159.90
  4. Step 4: Simplify right side
    125,032.10x = 15,368,040,813.91
  5. Step 5: Solve for x
    x = 15,368,040,813.91/125,032.10
  6. Step 6: Final answer
    x = 122,912.76

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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.