Home / 113,731.25-170,458.47-80,460.90

Finding the Fourth Proportional to 113,731.25, 170,458.47 and 80,460.90

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Solution

The fourth proportional to 113,731.25, 170,458.47 and 80,460.90 is: 120,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.25 : 170,458.47 = 80,460.90 : x
  2. Step 2: Convert to fraction form
    113,731.25/170,458.47 = 80,460.90/x
  3. Step 3: Cross multiply
    113,731.25x = 170,458.47 × 80,460.90
  4. Step 4: Simplify right side
    113,731.25x = 13,715,241,908.82
  5. Step 5: Solve for x
    x = 13,715,241,908.82/113,731.25
  6. Step 6: Final answer
    x = 120,593.44

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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.