Home / 131,677.18-181,713.51-71,247.63

Finding the Fourth Proportional to 131,677.18, 181,713.51 and 71,247.63

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Solution

The fourth proportional to 131,677.18, 181,713.51 and 71,247.63 is: 98,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,677.18 : 181,713.51 = 71,247.63 : x
  2. Step 2: Convert to fraction form
    131,677.18/181,713.51 = 71,247.63/x
  3. Step 3: Cross multiply
    131,677.18x = 181,713.51 × 71,247.63
  4. Step 4: Simplify right side
    131,677.18x = 12,946,657,607.91
  5. Step 5: Solve for x
    x = 12,946,657,607.91/131,677.18
  6. Step 6: Final answer
    x = 98,321.20

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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.