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Finding the Fourth Proportional to 100,529.38, 150,041.84 and 98,868.68

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Solution

The fourth proportional to 100,529.38, 150,041.84 and 98,868.68 is: 147,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,529.38 : 150,041.84 = 98,868.68 : x
  2. Step 2: Convert to fraction form
    100,529.38/150,041.84 = 98,868.68/x
  3. Step 3: Cross multiply
    100,529.38x = 150,041.84 × 98,868.68
  4. Step 4: Simplify right side
    100,529.38x = 14,834,438,665.57
  5. Step 5: Solve for x
    x = 14,834,438,665.57/100,529.38
  6. Step 6: Final answer
    x = 147,563.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.