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Finding the Fourth Proportional to 126,715.40, 174,865.02 and 73,000.28

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Solution

The fourth proportional to 126,715.40, 174,865.02 and 73,000.28 is: 100,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,715.40 : 174,865.02 = 73,000.28 : x
  2. Step 2: Convert to fraction form
    126,715.40/174,865.02 = 73,000.28/x
  3. Step 3: Cross multiply
    126,715.40x = 174,865.02 × 73,000.28
  4. Step 4: Simplify right side
    126,715.40x = 12,765,195,422.21
  5. Step 5: Solve for x
    x = 12,765,195,422.21/126,715.40
  6. Step 6: Final answer
    x = 100,739.10

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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.