Home / 126,856.13-175,061.45-76,555.13

Finding the Fourth Proportional to 126,856.13, 175,061.45 and 76,555.13

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Solution

The fourth proportional to 126,856.13, 175,061.45 and 76,555.13 is: 105,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,856.13 : 175,061.45 = 76,555.13 : x
  2. Step 2: Convert to fraction form
    126,856.13/175,061.45 = 76,555.13/x
  3. Step 3: Cross multiply
    126,856.13x = 175,061.45 × 76,555.13
  4. Step 4: Simplify right side
    126,856.13x = 13,401,851,378.82
  5. Step 5: Solve for x
    x = 13,401,851,378.82/126,856.13
  6. Step 6: Final answer
    x = 105,646.07

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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.