Home / 99,280.28-148,931.31-43,081.76

Finding the Fourth Proportional to 99,280.28, 148,931.31 and 43,081.76

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Solution

The fourth proportional to 99,280.28, 148,931.31 and 43,081.76 is: 64,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,280.28 : 148,931.31 = 43,081.76 : x
  2. Step 2: Convert to fraction form
    99,280.28/148,931.31 = 43,081.76/x
  3. Step 3: Cross multiply
    99,280.28x = 148,931.31 × 43,081.76
  4. Step 4: Simplify right side
    99,280.28x = 6,416,222,953.91
  5. Step 5: Solve for x
    x = 6,416,222,953.91/99,280.28
  6. Step 6: Final answer
    x = 64,627.37

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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.