Home / 132,880.92-183,372.78-72,449.28

Finding the Fourth Proportional to 132,880.92, 183,372.78 and 72,449.28

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Solution

The fourth proportional to 132,880.92, 183,372.78 and 72,449.28 is: 99,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,880.92 : 183,372.78 = 72,449.28 : x
  2. Step 2: Convert to fraction form
    132,880.92/183,372.78 = 72,449.28/x
  3. Step 3: Cross multiply
    132,880.92x = 183,372.78 × 72,449.28
  4. Step 4: Simplify right side
    132,880.92x = 13,285,225,882.60
  5. Step 5: Solve for x
    x = 13,285,225,882.60/132,880.92
  6. Step 6: Final answer
    x = 99,978.43

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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.