Home / 131,875.20-181,987.52-71,447.35

Finding the Fourth Proportional to 131,875.20, 181,987.52 and 71,447.35

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Solution

The fourth proportional to 131,875.20, 181,987.52 and 71,447.35 is: 98,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,875.20 : 181,987.52 = 71,447.35 : x
  2. Step 2: Convert to fraction form
    131,875.20/181,987.52 = 71,447.35/x
  3. Step 3: Cross multiply
    131,875.20x = 181,987.52 × 71,447.35
  4. Step 4: Simplify right side
    131,875.20x = 13,002,526,037.07
  5. Step 5: Solve for x
    x = 13,002,526,037.07/131,875.20
  6. Step 6: Final answer
    x = 98,597.20

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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.