Home / 136,901.12-205,416.96-74,570.24

Finding the Fourth Proportional to 136,901.12, 205,416.96 and 74,570.24

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Solution

The fourth proportional to 136,901.12, 205,416.96 and 74,570.24 is: 111,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,901.12 : 205,416.96 = 74,570.24 : x
  2. Step 2: Convert to fraction form
    136,901.12/205,416.96 = 74,570.24/x
  3. Step 3: Cross multiply
    136,901.12x = 205,416.96 × 74,570.24
  4. Step 4: Simplify right side
    136,901.12x = 15,317,992,007.27
  5. Step 5: Solve for x
    x = 15,317,992,007.27/136,901.12
  6. Step 6: Final answer
    x = 111,890.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.