Home / 131,512.91-181,487.85-71,083.36

Finding the Fourth Proportional to 131,512.91, 181,487.85 and 71,083.36

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Solution

The fourth proportional to 131,512.91, 181,487.85 and 71,083.36 is: 98,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,512.91 : 181,487.85 = 71,083.36 : x
  2. Step 2: Convert to fraction form
    131,512.91/181,487.85 = 71,083.36/x
  3. Step 3: Cross multiply
    131,512.91x = 181,487.85 × 71,083.36
  4. Step 4: Simplify right side
    131,512.91x = 12,900,766,137.47
  5. Step 5: Solve for x
    x = 12,900,766,137.47/131,512.91
  6. Step 6: Final answer
    x = 98,095.06

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1.5x scale

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.