Home / 131,669.13-181,702.11-71,238.45

Finding the Fourth Proportional to 131,669.13, 181,702.11 and 71,238.45

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Solution

The fourth proportional to 131,669.13, 181,702.11 and 71,238.45 is: 98,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,669.13 : 181,702.11 = 71,238.45 : x
  2. Step 2: Convert to fraction form
    131,669.13/181,702.11 = 71,238.45/x
  3. Step 3: Cross multiply
    131,669.13x = 181,702.11 × 71,238.45
  4. Step 4: Simplify right side
    131,669.13x = 12,944,176,659.74
  5. Step 5: Solve for x
    x = 12,944,176,659.74/131,669.13
  6. Step 6: Final answer
    x = 98,308.36

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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.