Home / 126,729.48-174,886.02-70,138.92

Finding the Fourth Proportional to 126,729.48, 174,886.02 and 70,138.92

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Solution

The fourth proportional to 126,729.48, 174,886.02 and 70,138.92 is: 96,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,729.48 : 174,886.02 = 70,138.92 : x
  2. Step 2: Convert to fraction form
    126,729.48/174,886.02 = 70,138.92/x
  3. Step 3: Cross multiply
    126,729.48x = 174,886.02 × 70,138.92
  4. Step 4: Simplify right side
    126,729.48x = 12,266,316,565.90
  5. Step 5: Solve for x
    x = 12,266,316,565.90/126,729.48
  6. Step 6: Final answer
    x = 96,791.34

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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.