Home / 113,743.10-170,614.65-87,499.10

Finding the Fourth Proportional to 113,743.10, 170,614.65 and 87,499.10

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Solution

The fourth proportional to 113,743.10, 170,614.65 and 87,499.10 is: 131,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,743.10 : 170,614.65 = 87,499.10 : x
  2. Step 2: Convert to fraction form
    113,743.10/170,614.65 = 87,499.10/x
  3. Step 3: Cross multiply
    113,743.10x = 170,614.65 × 87,499.10
  4. Step 4: Simplify right side
    113,743.10x = 14,928,628,321.82
  5. Step 5: Solve for x
    x = 14,928,628,321.82/113,743.10
  6. Step 6: Final answer
    x = 131,248.65

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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.