Home / 127,610.40-176,164.56-79,890.24

Finding the Fourth Proportional to 127,610.40, 176,164.56 and 79,890.24

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Solution

The fourth proportional to 127,610.40, 176,164.56 and 79,890.24 is: 110,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,610.40 : 176,164.56 = 79,890.24 : x
  2. Step 2: Convert to fraction form
    127,610.40/176,164.56 = 79,890.24/x
  3. Step 3: Cross multiply
    127,610.40x = 176,164.56 × 79,890.24
  4. Step 4: Simplify right side
    127,610.40x = 14,073,828,977.89
  5. Step 5: Solve for x
    x = 14,073,828,977.89/127,610.40
  6. Step 6: Final answer
    x = 110,287.48

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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.