Home / 127,726.20-191,330.10-72,257.40

Finding the Fourth Proportional to 127,726.20, 191,330.10 and 72,257.40

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Solution

The fourth proportional to 127,726.20, 191,330.10 and 72,257.40 is: 108,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726.20 : 191,330.10 = 72,257.40 : x
  2. Step 2: Convert to fraction form
    127,726.20/191,330.10 = 72,257.40/x
  3. Step 3: Cross multiply
    127,726.20x = 191,330.10 × 72,257.40
  4. Step 4: Simplify right side
    127,726.20x = 13,825,015,567.74
  5. Step 5: Solve for x
    x = 13,825,015,567.74/127,726.20
  6. Step 6: Final answer
    x = 108,239.47

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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.