Home / 111,964.12-154,330.40-75,654.23

Finding the Fourth Proportional to 111,964.12, 154,330.40 and 75,654.23

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Solution

The fourth proportional to 111,964.12, 154,330.40 and 75,654.23 is: 104,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,964.12 : 154,330.40 = 75,654.23 : x
  2. Step 2: Convert to fraction form
    111,964.12/154,330.40 = 75,654.23/x
  3. Step 3: Cross multiply
    111,964.12x = 154,330.40 × 75,654.23
  4. Step 4: Simplify right side
    111,964.12x = 11,675,746,902.40
  5. Step 5: Solve for x
    x = 11,675,746,902.40/111,964.12
  6. Step 6: Final answer
    x = 104,281.15

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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.