Home / 88,611.65-132,513.43-66,138.18

Finding the Fourth Proportional to 88,611.65, 132,513.43 and 66,138.18

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Solution

The fourth proportional to 88,611.65, 132,513.43 and 66,138.18 is: 98,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,611.65 : 132,513.43 = 66,138.18 : x
  2. Step 2: Convert to fraction form
    88,611.65/132,513.43 = 66,138.18/x
  3. Step 3: Cross multiply
    88,611.65x = 132,513.43 × 66,138.18
  4. Step 4: Simplify right side
    88,611.65x = 8,764,197,085.76
  5. Step 5: Solve for x
    x = 8,764,197,085.76/88,611.65
  6. Step 6: Final answer
    x = 98,905.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.