Home / 99,438.28-149,135.80-32,862.64

Finding the Fourth Proportional to 99,438.28, 149,135.80 and 32,862.64

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Solution

The fourth proportional to 99,438.28, 149,135.80 and 32,862.64 is: 49,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.28 : 149,135.80 = 32,862.64 : x
  2. Step 2: Convert to fraction form
    99,438.28/149,135.80 = 32,862.64/x
  3. Step 3: Cross multiply
    99,438.28x = 149,135.80 × 32,862.64
  4. Step 4: Simplify right side
    99,438.28x = 4,900,996,106.51
  5. Step 5: Solve for x
    x = 4,900,996,106.51/99,438.28
  6. Step 6: Final answer
    x = 49,286.81

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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.