Home / 125,223.40-172,874.82-85,151.08

Finding the Fourth Proportional to 125,223.40, 172,874.82 and 85,151.08

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Solution

The fourth proportional to 125,223.40, 172,874.82 and 85,151.08 is: 117,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,223.40 : 172,874.82 = 85,151.08 : x
  2. Step 2: Convert to fraction form
    125,223.40/172,874.82 = 85,151.08/x
  3. Step 3: Cross multiply
    125,223.40x = 172,874.82 × 85,151.08
  4. Step 4: Simplify right side
    125,223.40x = 14,720,477,627.81
  5. Step 5: Solve for x
    x = 14,720,477,627.81/125,223.40
  6. Step 6: Final answer
    x = 117,553.73

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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.