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Finding the Fourth Proportional to 131,464, 181,765.98 and 125,588.80

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Solution

The fourth proportional to 131,464, 181,765.98 and 125,588.80 is: 173,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464 : 181,765.98 = 125,588.80 : x
  2. Step 2: Convert to fraction form
    131,464/181,765.98 = 125,588.80/x
  3. Step 3: Cross multiply
    131,464x = 181,765.98 × 125,588.80
  4. Step 4: Simplify right side
    131,464x = 22,827,771,309.02
  5. Step 5: Solve for x
    x = 22,827,771,309.02/131,464
  6. Step 6: Final answer
    x = 173,642.76

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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.