Home / 131,810.26-181,897.88-71,380.88

Finding the Fourth Proportional to 131,810.26, 181,897.88 and 71,380.88

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Solution

The fourth proportional to 131,810.26, 181,897.88 and 71,380.88 is: 98,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,810.26 : 181,897.88 = 71,380.88 : x
  2. Step 2: Convert to fraction form
    131,810.26/181,897.88 = 71,380.88/x
  3. Step 3: Cross multiply
    131,810.26x = 181,897.88 × 71,380.88
  4. Step 4: Simplify right side
    131,810.26x = 12,984,030,744.53
  5. Step 5: Solve for x
    x = 12,984,030,744.53/131,810.26
  6. Step 6: Final answer
    x = 98,505.46

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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.