Home / 126,315.78-174,315.42-69,726.75

Finding the Fourth Proportional to 126,315.78, 174,315.42 and 69,726.75

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Solution

The fourth proportional to 126,315.78, 174,315.42 and 69,726.75 is: 96,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.78 : 174,315.42 = 69,726.75 : x
  2. Step 2: Convert to fraction form
    126,315.78/174,315.42 = 69,726.75/x
  3. Step 3: Cross multiply
    126,315.78x = 174,315.42 × 69,726.75
  4. Step 4: Simplify right side
    126,315.78x = 12,154,447,711.49
  5. Step 5: Solve for x
    x = 12,154,447,711.49/126,315.78
  6. Step 6: Final answer
    x = 96,222.72

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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.