Home / 126,315.36-174,315.78-69,728.76

Finding the Fourth Proportional to 126,315.36, 174,315.78 and 69,728.76

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Solution

The fourth proportional to 126,315.36, 174,315.78 and 69,728.76 is: 96,226.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.36 : 174,315.78 = 69,728.76 : x
  2. Step 2: Convert to fraction form
    126,315.36/174,315.78 = 69,728.76/x
  3. Step 3: Cross multiply
    126,315.36x = 174,315.78 × 69,728.76
  4. Step 4: Simplify right side
    126,315.36x = 12,154,823,187.83
  5. Step 5: Solve for x
    x = 12,154,823,187.83/126,315.36
  6. Step 6: Final answer
    x = 96,226.01

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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.