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Finding the Fourth Proportional to 88,658.10, 132,987.15 and 87,200.10

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Solution

The fourth proportional to 88,658.10, 132,987.15 and 87,200.10 is: 130,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,658.10 : 132,987.15 = 87,200.10 : x
  2. Step 2: Convert to fraction form
    88,658.10/132,987.15 = 87,200.10/x
  3. Step 3: Cross multiply
    88,658.10x = 132,987.15 × 87,200.10
  4. Step 4: Simplify right side
    88,658.10x = 11,596,492,778.72
  5. Step 5: Solve for x
    x = 11,596,492,778.72/88,658.10
  6. Step 6: Final answer
    x = 130,800.15

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1.5x scale

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.