Home / 127,625.82-191,228.10-74,167.74

Finding the Fourth Proportional to 127,625.82, 191,228.10 and 74,167.74

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Solution

The fourth proportional to 127,625.82, 191,228.10 and 74,167.74 is: 111,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,625.82 : 191,228.10 = 74,167.74 : x
  2. Step 2: Convert to fraction form
    127,625.82/191,228.10 = 74,167.74/x
  3. Step 3: Cross multiply
    127,625.82x = 191,228.10 × 74,167.74
  4. Step 4: Simplify right side
    127,625.82x = 14,182,956,001.49
  5. Step 5: Solve for x
    x = 14,182,956,001.49/127,625.82
  6. Step 6: Final answer
    x = 111,129.21

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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.