Home / 131,586.29-181,588.91-71,156.78

Finding the Fourth Proportional to 131,586.29, 181,588.91 and 71,156.78

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Solution

The fourth proportional to 131,586.29, 181,588.91 and 71,156.78 is: 98,196.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,586.29 : 181,588.91 = 71,156.78 : x
  2. Step 2: Convert to fraction form
    131,586.29/181,588.91 = 71,156.78/x
  3. Step 3: Cross multiply
    131,586.29x = 181,588.91 × 71,156.78
  4. Step 4: Simplify right side
    131,586.29x = 12,921,281,536.54
  5. Step 5: Solve for x
    x = 12,921,281,536.54/131,586.29
  6. Step 6: Final answer
    x = 98,196.26

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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.