Home / 111,987.50-154,550.04-74,269.04

Finding the Fourth Proportional to 111,987.50, 154,550.04 and 74,269.04

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Solution

The fourth proportional to 111,987.50, 154,550.04 and 74,269.04 is: 102,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,987.50 : 154,550.04 = 74,269.04 : x
  2. Step 2: Convert to fraction form
    111,987.50/154,550.04 = 74,269.04/x
  3. Step 3: Cross multiply
    111,987.50x = 154,550.04 × 74,269.04
  4. Step 4: Simplify right side
    111,987.50x = 11,478,283,102.76
  5. Step 5: Solve for x
    x = 11,478,283,102.76/111,987.50
  6. Step 6: Final answer
    x = 102,496.11

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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.