Home / 126,759.72-175,010.94-81,455.16

Finding the Fourth Proportional to 126,759.72, 175,010.94 and 81,455.16

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Solution

The fourth proportional to 126,759.72, 175,010.94 and 81,455.16 is: 112,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,759.72 : 175,010.94 = 81,455.16 : x
  2. Step 2: Convert to fraction form
    126,759.72/175,010.94 = 81,455.16/x
  3. Step 3: Cross multiply
    126,759.72x = 175,010.94 × 81,455.16
  4. Step 4: Simplify right side
    126,759.72x = 14,255,544,119.45
  5. Step 5: Solve for x
    x = 14,255,544,119.45/126,759.72
  6. Step 6: Final answer
    x = 112,461.15

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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.