Home / 147,500.45-221,414.70-91,403.90

Finding the Fourth Proportional to 147,500.45, 221,414.70 and 91,403.90

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Solution

The fourth proportional to 147,500.45, 221,414.70 and 91,403.90 is: 137,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,500.45 : 221,414.70 = 91,403.90 : x
  2. Step 2: Convert to fraction form
    147,500.45/221,414.70 = 91,403.90/x
  3. Step 3: Cross multiply
    147,500.45x = 221,414.70 × 91,403.90
  4. Step 4: Simplify right side
    147,500.45x = 20,238,167,097.33
  5. Step 5: Solve for x
    x = 20,238,167,097.33/147,500.45
  6. Step 6: Final answer
    x = 137,207.49

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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.