Home / 99,030.60-148,618.80-39,908.70

Finding the Fourth Proportional to 99,030.60, 148,618.80 and 39,908.70

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Solution

The fourth proportional to 99,030.60, 148,618.80 and 39,908.70 is: 59,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.60 : 148,618.80 = 39,908.70 : x
  2. Step 2: Convert to fraction form
    99,030.60/148,618.80 = 39,908.70/x
  3. Step 3: Cross multiply
    99,030.60x = 148,618.80 × 39,908.70
  4. Step 4: Simplify right side
    99,030.60x = 5,931,183,103.56
  5. Step 5: Solve for x
    x = 5,931,183,103.56/99,030.60
  6. Step 6: Final answer
    x = 59,892.43

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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.