Home / 126,899.84-175,153.92-75,943.28

Finding the Fourth Proportional to 126,899.84, 175,153.92 and 75,943.28

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Solution

The fourth proportional to 126,899.84, 175,153.92 and 75,943.28 is: 104,820.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,899.84 : 175,153.92 = 75,943.28 : x
  2. Step 2: Convert to fraction form
    126,899.84/175,153.92 = 75,943.28/x
  3. Step 3: Cross multiply
    126,899.84x = 175,153.92 × 75,943.28
  4. Step 4: Simplify right side
    126,899.84x = 13,301,763,189.66
  5. Step 5: Solve for x
    x = 13,301,763,189.66/126,899.84
  6. Step 6: Final answer
    x = 104,820.96

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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.