Home / 127,057.20-175,370.84-86,290.32

Finding the Fourth Proportional to 127,057.20, 175,370.84 and 86,290.32

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Solution

The fourth proportional to 127,057.20, 175,370.84 and 86,290.32 is: 119,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,057.20 : 175,370.84 = 86,290.32 : x
  2. Step 2: Convert to fraction form
    127,057.20/175,370.84 = 86,290.32/x
  3. Step 3: Cross multiply
    127,057.20x = 175,370.84 × 86,290.32
  4. Step 4: Simplify right side
    127,057.20x = 15,132,805,470.82
  5. Step 5: Solve for x
    x = 15,132,805,470.82/127,057.20
  6. Step 6: Final answer
    x = 119,102.31

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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.