Home / 132,158.40-182,378.77-71,729.04

Finding the Fourth Proportional to 132,158.40, 182,378.77 and 71,729.04

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Solution

The fourth proportional to 132,158.40, 182,378.77 and 71,729.04 is: 98,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,158.40 : 182,378.77 = 71,729.04 : x
  2. Step 2: Convert to fraction form
    132,158.40/182,378.77 = 71,729.04/x
  3. Step 3: Cross multiply
    132,158.40x = 182,378.77 × 71,729.04
  4. Step 4: Simplify right side
    132,158.40x = 13,081,854,088.48
  5. Step 5: Solve for x
    x = 13,081,854,088.48/132,158.40
  6. Step 6: Final answer
    x = 98,986.17

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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.