Home / 131,702.96-181,751.22-77,287.70

Finding the Fourth Proportional to 131,702.96, 181,751.22 and 77,287.70

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Solution

The fourth proportional to 131,702.96, 181,751.22 and 77,287.70 is: 106,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,702.96 : 181,751.22 = 77,287.70 : x
  2. Step 2: Convert to fraction form
    131,702.96/181,751.22 = 77,287.70/x
  3. Step 3: Cross multiply
    131,702.96x = 181,751.22 × 77,287.70
  4. Step 4: Simplify right side
    131,702.96x = 14,047,132,857.24
  5. Step 5: Solve for x
    x = 14,047,132,857.24/131,702.96
  6. Step 6: Final answer
    x = 106,657.69

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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.