Home / 126,613.78-174,707.62-72,888.41

Finding the Fourth Proportional to 126,613.78, 174,707.62 and 72,888.41

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Solution

The fourth proportional to 126,613.78, 174,707.62 and 72,888.41 is: 100,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,613.78 : 174,707.62 = 72,888.41 : x
  2. Step 2: Convert to fraction form
    126,613.78/174,707.62 = 72,888.41/x
  3. Step 3: Cross multiply
    126,613.78x = 174,707.62 × 72,888.41
  4. Step 4: Simplify right side
    126,613.78x = 12,734,160,891.23
  5. Step 5: Solve for x
    x = 12,734,160,891.23/126,613.78
  6. Step 6: Final answer
    x = 100,574.84

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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.