Home / 126,369.28-174,389.76-69,780.66

Finding the Fourth Proportional to 126,369.28, 174,389.76 and 69,780.66

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Solution

The fourth proportional to 126,369.28, 174,389.76 and 69,780.66 is: 96,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369.28 : 174,389.76 = 69,780.66 : x
  2. Step 2: Convert to fraction form
    126,369.28/174,389.76 = 69,780.66/x
  3. Step 3: Cross multiply
    126,369.28x = 174,389.76 × 69,780.66
  4. Step 4: Simplify right side
    126,369.28x = 12,169,031,896.08
  5. Step 5: Solve for x
    x = 12,169,031,896.08/126,369.28
  6. Step 6: Final answer
    x = 96,297.39

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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.