Home / 132,889.28-183,380.46-72,459.43

Finding the Fourth Proportional to 132,889.28, 183,380.46 and 72,459.43

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Solution

The fourth proportional to 132,889.28, 183,380.46 and 72,459.43 is: 99,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,889.28 : 183,380.46 = 72,459.43 : x
  2. Step 2: Convert to fraction form
    132,889.28/183,380.46 = 72,459.43/x
  3. Step 3: Cross multiply
    132,889.28x = 183,380.46 × 72,459.43
  4. Step 4: Simplify right side
    132,889.28x = 13,287,642,874.56
  5. Step 5: Solve for x
    x = 13,287,642,874.56/132,889.28
  6. Step 6: Final answer
    x = 99,990.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.