Home / 111,785.06-154,329.10-69,366.98

Finding the Fourth Proportional to 111,785.06, 154,329.10 and 69,366.98

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Solution

The fourth proportional to 111,785.06, 154,329.10 and 69,366.98 is: 95,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,785.06 : 154,329.10 = 69,366.98 : x
  2. Step 2: Convert to fraction form
    111,785.06/154,329.10 = 69,366.98/x
  3. Step 3: Cross multiply
    111,785.06x = 154,329.10 × 69,366.98
  4. Step 4: Simplify right side
    111,785.06x = 10,705,343,593.12
  5. Step 5: Solve for x
    x = 10,705,343,593.12/111,785.06
  6. Step 6: Final answer
    x = 95,767.21

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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.