Home / 126,763.77-175,052.55-81,520.33

Finding the Fourth Proportional to 126,763.77, 175,052.55 and 81,520.33

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Solution

The fourth proportional to 126,763.77, 175,052.55 and 81,520.33 is: 112,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,763.77 : 175,052.55 = 81,520.33 : x
  2. Step 2: Convert to fraction form
    126,763.77/175,052.55 = 81,520.33/x
  3. Step 3: Cross multiply
    126,763.77x = 175,052.55 × 81,520.33
  4. Step 4: Simplify right side
    126,763.77x = 14,270,341,643.34
  5. Step 5: Solve for x
    x = 14,270,341,643.34/126,763.77
  6. Step 6: Final answer
    x = 112,574.29

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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.