Home / 131,487.00-181,437.62-80,512.58

Finding the Fourth Proportional to 131,487.00, 181,437.62 and 80,512.58

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Solution

The fourth proportional to 131,487.00, 181,437.62 and 80,512.58 is: 111,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,487.00 : 181,437.62 = 80,512.58 : x
  2. Step 2: Convert to fraction form
    131,487.00/181,437.62 = 80,512.58/x
  3. Step 3: Cross multiply
    131,487.00x = 181,437.62 × 80,512.58
  4. Step 4: Simplify right side
    131,487.00x = 14,608,011,399.17
  5. Step 5: Solve for x
    x = 14,608,011,399.17/131,487.00
  6. Step 6: Final answer
    x = 111,098.53

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1.5x scale

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.