Home / 111,997.49-154,455.05-74,206.13

Finding the Fourth Proportional to 111,997.49, 154,455.05 and 74,206.13

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Solution

The fourth proportional to 111,997.49, 154,455.05 and 74,206.13 is: 102,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,997.49 : 154,455.05 = 74,206.13 : x
  2. Step 2: Convert to fraction form
    111,997.49/154,455.05 = 74,206.13/x
  3. Step 3: Cross multiply
    111,997.49x = 154,455.05 × 74,206.13
  4. Step 4: Simplify right side
    111,997.49x = 11,461,510,932.70
  5. Step 5: Solve for x
    x = 11,461,510,932.70/111,997.49
  6. Step 6: Final answer
    x = 102,337.22

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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.