Home / 126,281.01-174,058.80-89,439.41

Finding the Fourth Proportional to 126,281.01, 174,058.80 and 89,439.41

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Solution

The fourth proportional to 126,281.01, 174,058.80 and 89,439.41 is: 123,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,281.01 : 174,058.80 = 89,439.41 : x
  2. Step 2: Convert to fraction form
    126,281.01/174,058.80 = 89,439.41/x
  3. Step 3: Cross multiply
    126,281.01x = 174,058.80 × 89,439.41
  4. Step 4: Simplify right side
    126,281.01x = 15,567,715,507.01
  5. Step 5: Solve for x
    x = 15,567,715,507.01/126,281.01
  6. Step 6: Final answer
    x = 123,278.36

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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.