Home / 131,702.24-181,749.55-71,272.87

Finding the Fourth Proportional to 131,702.24, 181,749.55 and 71,272.87

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Solution

The fourth proportional to 131,702.24, 181,749.55 and 71,272.87 is: 98,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,702.24 : 181,749.55 = 71,272.87 : x
  2. Step 2: Convert to fraction form
    131,702.24/181,749.55 = 71,272.87/x
  3. Step 3: Cross multiply
    131,702.24x = 181,749.55 × 71,272.87
  4. Step 4: Simplify right side
    131,702.24x = 12,953,811,417.15
  5. Step 5: Solve for x
    x = 12,953,811,417.15/131,702.24
  6. Step 6: Final answer
    x = 98,356.80

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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.