Home / 131,646.77-181,671.72-71,217.17

Finding the Fourth Proportional to 131,646.77, 181,671.72 and 71,217.17

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Solution

The fourth proportional to 131,646.77, 181,671.72 and 71,217.17 is: 98,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,646.77 : 181,671.72 = 71,217.17 : x
  2. Step 2: Convert to fraction form
    131,646.77/181,671.72 = 71,217.17/x
  3. Step 3: Cross multiply
    131,646.77x = 181,671.72 × 71,217.17
  4. Step 4: Simplify right side
    131,646.77x = 12,938,145,767.43
  5. Step 5: Solve for x
    x = 12,938,145,767.43/131,646.77
  6. Step 6: Final answer
    x = 98,279.25

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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.