Home / 108,867.20-150,236.80-61,125.12

Finding the Fourth Proportional to 108,867.20, 150,236.80 and 61,125.12

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Solution

The fourth proportional to 108,867.20, 150,236.80 and 61,125.12 is: 84,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,867.20 : 150,236.80 = 61,125.12 : x
  2. Step 2: Convert to fraction form
    108,867.20/150,236.80 = 61,125.12/x
  3. Step 3: Cross multiply
    108,867.20x = 150,236.80 × 61,125.12
  4. Step 4: Simplify right side
    108,867.20x = 9,183,242,428.42
  5. Step 5: Solve for x
    x = 9,183,242,428.42/108,867.20
  6. Step 6: Final answer
    x = 84,352.70

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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.