Home / 131,875.17-181,987.77-71,446.23

Finding the Fourth Proportional to 131,875.17, 181,987.77 and 71,446.23

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Solution

The fourth proportional to 131,875.17, 181,987.77 and 71,446.23 is: 98,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,875.17 : 181,987.77 = 71,446.23 : x
  2. Step 2: Convert to fraction form
    131,875.17/181,987.77 = 71,446.23/x
  3. Step 3: Cross multiply
    131,875.17x = 181,987.77 × 71,446.23
  4. Step 4: Simplify right side
    131,875.17x = 13,002,339,162.67
  5. Step 5: Solve for x
    x = 13,002,339,162.67/131,875.17
  6. Step 6: Final answer
    x = 98,595.81

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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.