Home / 132,881.20-183,380.16-72,453.76

Finding the Fourth Proportional to 132,881.20, 183,380.16 and 72,453.76

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Solution

The fourth proportional to 132,881.20, 183,380.16 and 72,453.76 is: 99,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,881.20 : 183,380.16 = 72,453.76 : x
  2. Step 2: Convert to fraction form
    132,881.20/183,380.16 = 72,453.76/x
  3. Step 3: Cross multiply
    132,881.20x = 183,380.16 × 72,453.76
  4. Step 4: Simplify right side
    132,881.20x = 13,286,582,101.40
  5. Step 5: Solve for x
    x = 13,286,582,101.40/132,881.20
  6. Step 6: Final answer
    x = 99,988.43

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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.