Home / 113,899.92-170,854.38-42,815.40

Finding the Fourth Proportional to 113,899.92, 170,854.38 and 42,815.40

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Solution

The fourth proportional to 113,899.92, 170,854.38 and 42,815.40 is: 64,224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,899.92 : 170,854.38 = 42,815.40 : x
  2. Step 2: Convert to fraction form
    113,899.92/170,854.38 = 42,815.40/x
  3. Step 3: Cross multiply
    113,899.92x = 170,854.38 × 42,815.40
  4. Step 4: Simplify right side
    113,899.92x = 7,315,198,621.45
  5. Step 5: Solve for x
    x = 7,315,198,621.45/113,899.92
  6. Step 6: Final answer
    x = 64,224.79

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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.