Home / 99,288.28-148,943.32-43,089.76

Finding the Fourth Proportional to 99,288.28, 148,943.32 and 43,089.76

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Solution

The fourth proportional to 99,288.28, 148,943.32 and 43,089.76 is: 64,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,288.28 : 148,943.32 = 43,089.76 : x
  2. Step 2: Convert to fraction form
    99,288.28/148,943.32 = 43,089.76/x
  3. Step 3: Cross multiply
    99,288.28x = 148,943.32 × 43,089.76
  4. Step 4: Simplify right side
    99,288.28x = 6,417,931,912.40
  5. Step 5: Solve for x
    x = 6,417,931,912.40/99,288.28
  6. Step 6: Final answer
    x = 64,639.37

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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.