Home / 131,814.41-181,904.76-71,385.08

Finding the Fourth Proportional to 131,814.41, 181,904.76 and 71,385.08

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Solution

The fourth proportional to 131,814.41, 181,904.76 and 71,385.08 is: 98,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,814.41 : 181,904.76 = 71,385.08 : x
  2. Step 2: Convert to fraction form
    131,814.41/181,904.76 = 71,385.08/x
  3. Step 3: Cross multiply
    131,814.41x = 181,904.76 × 71,385.08
  4. Step 4: Simplify right side
    131,814.41x = 12,985,284,935.46
  5. Step 5: Solve for x
    x = 12,985,284,935.46/131,814.41
  6. Step 6: Final answer
    x = 98,511.88

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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.