Home / 127,057.32-175,224.36-79,315.08

Finding the Fourth Proportional to 127,057.32, 175,224.36 and 79,315.08

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Solution

The fourth proportional to 127,057.32, 175,224.36 and 79,315.08 is: 109,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,057.32 : 175,224.36 = 79,315.08 : x
  2. Step 2: Convert to fraction form
    127,057.32/175,224.36 = 79,315.08/x
  3. Step 3: Cross multiply
    127,057.32x = 175,224.36 × 79,315.08
  4. Step 4: Simplify right side
    127,057.32x = 13,897,934,131.35
  5. Step 5: Solve for x
    x = 13,897,934,131.35/127,057.32
  6. Step 6: Final answer
    x = 109,383.18

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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.