Home / 126,838.77-175,031.28-69,478.35

Finding the Fourth Proportional to 126,838.77, 175,031.28 and 69,478.35

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Solution

The fourth proportional to 126,838.77, 175,031.28 and 69,478.35 is: 95,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,838.77 : 175,031.28 = 69,478.35 : x
  2. Step 2: Convert to fraction form
    126,838.77/175,031.28 = 69,478.35/x
  3. Step 3: Cross multiply
    126,838.77x = 175,031.28 × 69,478.35
  4. Step 4: Simplify right side
    126,838.77x = 12,160,883,876.42
  5. Step 5: Solve for x
    x = 12,160,883,876.42/126,838.77
  6. Step 6: Final answer
    x = 95,876.71

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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.