Home / 126,637.98-189,862.59-42,348.30

Finding the Fourth Proportional to 126,637.98, 189,862.59 and 42,348.30

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Solution

The fourth proportional to 126,637.98, 189,862.59 and 42,348.30 is: 63,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,637.98 : 189,862.59 = 42,348.30 : x
  2. Step 2: Convert to fraction form
    126,637.98/189,862.59 = 42,348.30/x
  3. Step 3: Cross multiply
    126,637.98x = 189,862.59 × 42,348.30
  4. Step 4: Simplify right side
    126,637.98x = 8,040,357,920.10
  5. Step 5: Solve for x
    x = 8,040,357,920.10/126,637.98
  6. Step 6: Final answer
    x = 63,490.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.