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Finding the Fourth Proportional to 99,648.40, 149,560.08 and 55,325.20

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Solution

The fourth proportional to 99,648.40, 149,560.08 and 55,325.20 is: 83,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648.40 : 149,560.08 = 55,325.20 : x
  2. Step 2: Convert to fraction form
    99,648.40/149,560.08 = 55,325.20/x
  3. Step 3: Cross multiply
    99,648.40x = 149,560.08 × 55,325.20
  4. Step 4: Simplify right side
    99,648.40x = 8,274,441,338.02
  5. Step 5: Solve for x
    x = 8,274,441,338.02/99,648.40
  6. Step 6: Final answer
    x = 83,036.37

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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.