Home / 121,504.72-182,424.96-83,972.32

Finding the Fourth Proportional to 121,504.72, 182,424.96 and 83,972.32

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Solution

The fourth proportional to 121,504.72, 182,424.96 and 83,972.32 is: 126,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,504.72 : 182,424.96 = 83,972.32 : x
  2. Step 2: Convert to fraction form
    121,504.72/182,424.96 = 83,972.32/x
  3. Step 3: Cross multiply
    121,504.72x = 182,424.96 × 83,972.32
  4. Step 4: Simplify right side
    121,504.72x = 15,318,647,117.11
  5. Step 5: Solve for x
    x = 15,318,647,117.11/121,504.72
  6. Step 6: Final answer
    x = 126,074.50

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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.