Home / 131,525.52-181,565.60-77,070.11

Finding the Fourth Proportional to 131,525.52, 181,565.60 and 77,070.11

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Solution

The fourth proportional to 131,525.52, 181,565.60 and 77,070.11 is: 106,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,525.52 : 181,565.60 = 77,070.11 : x
  2. Step 2: Convert to fraction form
    131,525.52/181,565.60 = 77,070.11/x
  3. Step 3: Cross multiply
    131,525.52x = 181,565.60 × 77,070.11
  4. Step 4: Simplify right side
    131,525.52x = 13,993,279,471.04
  5. Step 5: Solve for x
    x = 13,993,279,471.04/131,525.52
  6. Step 6: Final answer
    x = 106,392.12

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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.