Home / 99,003.20-148,490.40-28,875.20

Finding the Fourth Proportional to 99,003.20, 148,490.40 and 28,875.20

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Solution

The fourth proportional to 99,003.20, 148,490.40 and 28,875.20 is: 43,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,003.20 : 148,490.40 = 28,875.20 : x
  2. Step 2: Convert to fraction form
    99,003.20/148,490.40 = 28,875.20/x
  3. Step 3: Cross multiply
    99,003.20x = 148,490.40 × 28,875.20
  4. Step 4: Simplify right side
    99,003.20x = 4,287,689,998.08
  5. Step 5: Solve for x
    x = 4,287,689,998.08/99,003.20
  6. Step 6: Final answer
    x = 43,308.60

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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.