Home / 113,993.57-157,229.53-80,009.64

Finding the Fourth Proportional to 113,993.57, 157,229.53 and 80,009.64

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Solution

The fourth proportional to 113,993.57, 157,229.53 and 80,009.64 is: 110,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,993.57 : 157,229.53 = 80,009.64 : x
  2. Step 2: Convert to fraction form
    113,993.57/157,229.53 = 80,009.64/x
  3. Step 3: Cross multiply
    113,993.57x = 157,229.53 × 80,009.64
  4. Step 4: Simplify right side
    113,993.57x = 12,579,877,892.65
  5. Step 5: Solve for x
    x = 12,579,877,892.65/113,993.57
  6. Step 6: Final answer
    x = 110,356.03

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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.