Home / 131,577.42-181,565.82-77,853.07

Finding the Fourth Proportional to 131,577.42, 181,565.82 and 77,853.07

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Solution

The fourth proportional to 131,577.42, 181,565.82 and 77,853.07 is: 107,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577.42 : 181,565.82 = 77,853.07 : x
  2. Step 2: Convert to fraction form
    131,577.42/181,565.82 = 77,853.07/x
  3. Step 3: Cross multiply
    131,577.42x = 181,565.82 × 77,853.07
  4. Step 4: Simplify right side
    131,577.42x = 14,135,456,494.07
  5. Step 5: Solve for x
    x = 14,135,456,494.07/131,577.42
  6. Step 6: Final answer
    x = 107,430.72

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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.