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Finding the Fourth Proportional to 148,444.01, 204,847.74 and 87,978.76

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Solution

The fourth proportional to 148,444.01, 204,847.74 and 87,978.76 is: 121,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,444.01 : 204,847.74 = 87,978.76 : x
  2. Step 2: Convert to fraction form
    148,444.01/204,847.74 = 87,978.76/x
  3. Step 3: Cross multiply
    148,444.01x = 204,847.74 × 87,978.76
  4. Step 4: Simplify right side
    148,444.01x = 18,022,250,154.00
  5. Step 5: Solve for x
    x = 18,022,250,154.00/148,444.01
  6. Step 6: Final answer
    x = 121,407.73

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1.5x scale

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.