Home / 132,981.76-183,513.36-72,553.12

Finding the Fourth Proportional to 132,981.76, 183,513.36 and 72,553.12

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Solution

The fourth proportional to 132,981.76, 183,513.36 and 72,553.12 is: 100,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981.76 : 183,513.36 = 72,553.12 : x
  2. Step 2: Convert to fraction form
    132,981.76/183,513.36 = 72,553.12/x
  3. Step 3: Cross multiply
    132,981.76x = 183,513.36 × 72,553.12
  4. Step 4: Simplify right side
    132,981.76x = 13,314,466,829.68
  5. Step 5: Solve for x
    x = 13,314,466,829.68/132,981.76
  6. Step 6: Final answer
    x = 100,122.50

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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.