Home / 125,180-172,746.48-71,496.32

Finding the Fourth Proportional to 125,180, 172,746.48 and 71,496.32

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Solution

The fourth proportional to 125,180, 172,746.48 and 71,496.32 is: 98,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,180 : 172,746.48 = 71,496.32 : x
  2. Step 2: Convert to fraction form
    125,180/172,746.48 = 71,496.32/x
  3. Step 3: Cross multiply
    125,180x = 172,746.48 × 71,496.32
  4. Step 4: Simplify right side
    125,180x = 12,350,737,612.95
  5. Step 5: Solve for x
    x = 12,350,737,612.95/125,180
  6. Step 6: Final answer
    x = 98,663.82

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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.