Home / 126,104.06-174,031.03-72,389.18

Finding the Fourth Proportional to 126,104.06, 174,031.03 and 72,389.18

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Solution

The fourth proportional to 126,104.06, 174,031.03 and 72,389.18 is: 99,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,104.06 : 174,031.03 = 72,389.18 : x
  2. Step 2: Convert to fraction form
    126,104.06/174,031.03 = 72,389.18/x
  3. Step 3: Cross multiply
    126,104.06x = 174,031.03 × 72,389.18
  4. Step 4: Simplify right side
    126,104.06x = 12,597,963,556.26
  5. Step 5: Solve for x
    x = 12,597,963,556.26/126,104.06
  6. Step 6: Final answer
    x = 99,901.33

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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.