Home / 126,969.84-175,207.38-72,521.74

Finding the Fourth Proportional to 126,969.84, 175,207.38 and 72,521.74

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Solution

The fourth proportional to 126,969.84, 175,207.38 and 72,521.74 is: 100,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,969.84 : 175,207.38 = 72,521.74 : x
  2. Step 2: Convert to fraction form
    126,969.84/175,207.38 = 72,521.74/x
  3. Step 3: Cross multiply
    126,969.84x = 175,207.38 × 72,521.74
  4. Step 4: Simplify right side
    126,969.84x = 12,706,344,058.44
  5. Step 5: Solve for x
    x = 12,706,344,058.44/126,969.84
  6. Step 6: Final answer
    x = 100,073.72

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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.