Home / 132,838.28-183,311.51-72,407.66

Finding the Fourth Proportional to 132,838.28, 183,311.51 and 72,407.66

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Solution

The fourth proportional to 132,838.28, 183,311.51 and 72,407.66 is: 99,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,838.28 : 183,311.51 = 72,407.66 : x
  2. Step 2: Convert to fraction form
    132,838.28/183,311.51 = 72,407.66/x
  3. Step 3: Cross multiply
    132,838.28x = 183,311.51 × 72,407.66
  4. Step 4: Simplify right side
    132,838.28x = 13,273,156,211.57
  5. Step 5: Solve for x
    x = 13,273,156,211.57/132,838.28
  6. Step 6: Final answer
    x = 99,919.66

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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.