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Finding the Fourth Proportional to 88,230.60, 132,345.90 and 86,772.60

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Solution

The fourth proportional to 88,230.60, 132,345.90 and 86,772.60 is: 130,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,230.60 : 132,345.90 = 86,772.60 : x
  2. Step 2: Convert to fraction form
    88,230.60/132,345.90 = 86,772.60/x
  3. Step 3: Cross multiply
    88,230.60x = 132,345.90 × 86,772.60
  4. Step 4: Simplify right side
    88,230.60x = 11,483,997,842.34
  5. Step 5: Solve for x
    x = 11,483,997,842.34/88,230.60
  6. Step 6: Final answer
    x = 130,158.90

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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.