Home / 121,324.12-181,037.13-108,715.66

Finding the Fourth Proportional to 121,324.12, 181,037.13 and 108,715.66

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Solution

The fourth proportional to 121,324.12, 181,037.13 and 108,715.66 is: 162,223.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,324.12 : 181,037.13 = 108,715.66 : x
  2. Step 2: Convert to fraction form
    121,324.12/181,037.13 = 108,715.66/x
  3. Step 3: Cross multiply
    121,324.12x = 181,037.13 × 108,715.66
  4. Step 4: Simplify right side
    121,324.12x = 19,681,571,072.46
  5. Step 5: Solve for x
    x = 19,681,571,072.46/121,324.12
  6. Step 6: Final answer
    x = 162,223.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.