Home / 127,443.12-175,822.40-82,117.48

Finding the Fourth Proportional to 127,443.12, 175,822.40 and 82,117.48

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Solution

The fourth proportional to 127,443.12, 175,822.40 and 82,117.48 is: 113,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,443.12 : 175,822.40 = 82,117.48 : x
  2. Step 2: Convert to fraction form
    127,443.12/175,822.40 = 82,117.48/x
  3. Step 3: Cross multiply
    127,443.12x = 175,822.40 × 82,117.48
  4. Step 4: Simplify right side
    127,443.12x = 14,438,092,415.55
  5. Step 5: Solve for x
    x = 14,438,092,415.55/127,443.12
  6. Step 6: Final answer
    x = 113,290.48

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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.