Home / 151,836.80-209,560.42-88,211.50

Finding the Fourth Proportional to 151,836.80, 209,560.42 and 88,211.50

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Solution

The fourth proportional to 151,836.80, 209,560.42 and 88,211.50 is: 121,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,836.80 : 209,560.42 = 88,211.50 : x
  2. Step 2: Convert to fraction form
    151,836.80/209,560.42 = 88,211.50/x
  3. Step 3: Cross multiply
    151,836.80x = 209,560.42 × 88,211.50
  4. Step 4: Simplify right side
    151,836.80x = 18,485,638,079.00
  5. Step 5: Solve for x
    x = 18,485,638,079.00/151,836.80
  6. Step 6: Final answer
    x = 121,746.76

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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.