Home / 132,621.38-183,019.84-72,193.76

Finding the Fourth Proportional to 132,621.38, 183,019.84 and 72,193.76

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Solution

The fourth proportional to 132,621.38, 183,019.84 and 72,193.76 is: 99,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,621.38 : 183,019.84 = 72,193.76 : x
  2. Step 2: Convert to fraction form
    132,621.38/183,019.84 = 72,193.76/x
  3. Step 3: Cross multiply
    132,621.38x = 183,019.84 × 72,193.76
  4. Step 4: Simplify right side
    132,621.38x = 13,212,890,404.20
  5. Step 5: Solve for x
    x = 13,212,890,404.20/132,621.38
  6. Step 6: Final answer
    x = 99,628.66

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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.