Home / 131,605.56-181,652.22-77,909.04

Finding the Fourth Proportional to 131,605.56, 181,652.22 and 77,909.04

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Solution

The fourth proportional to 131,605.56, 181,652.22 and 77,909.04 is: 107,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,605.56 : 181,652.22 = 77,909.04 : x
  2. Step 2: Convert to fraction form
    131,605.56/181,652.22 = 77,909.04/x
  3. Step 3: Cross multiply
    131,605.56x = 181,652.22 × 77,909.04
  4. Step 4: Simplify right side
    131,605.56x = 14,152,350,074.07
  5. Step 5: Solve for x
    x = 14,152,350,074.07/131,605.56
  6. Step 6: Final answer
    x = 107,536.11

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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.