Home / 126,102.76-174,006.88-85,803.64

Finding the Fourth Proportional to 126,102.76, 174,006.88 and 85,803.64

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Solution

The fourth proportional to 126,102.76, 174,006.88 and 85,803.64 is: 118,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,102.76 : 174,006.88 = 85,803.64 : x
  2. Step 2: Convert to fraction form
    126,102.76/174,006.88 = 85,803.64/x
  3. Step 3: Cross multiply
    126,102.76x = 174,006.88 × 85,803.64
  4. Step 4: Simplify right side
    126,102.76x = 14,930,423,689.04
  5. Step 5: Solve for x
    x = 14,930,423,689.04/126,102.76
  6. Step 6: Final answer
    x = 118,398.87

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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.