Home / 131,886.55-181,903.02-113,520.92

Finding the Fourth Proportional to 131,886.55, 181,903.02 and 113,520.92

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Solution

The fourth proportional to 131,886.55, 181,903.02 and 113,520.92 is: 156,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,886.55 : 181,903.02 = 113,520.92 : x
  2. Step 2: Convert to fraction form
    131,886.55/181,903.02 = 113,520.92/x
  3. Step 3: Cross multiply
    131,886.55x = 181,903.02 × 113,520.92
  4. Step 4: Simplify right side
    131,886.55x = 20,649,796,845.96
  5. Step 5: Solve for x
    x = 20,649,796,845.96/131,886.55
  6. Step 6: Final answer
    x = 156,572.42

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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.