Home / 147,693.40-221,540.10-131,363.80

Finding the Fourth Proportional to 147,693.40, 221,540.10 and 131,363.80

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Solution

The fourth proportional to 147,693.40, 221,540.10 and 131,363.80 is: 197,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,693.40 : 221,540.10 = 131,363.80 : x
  2. Step 2: Convert to fraction form
    147,693.40/221,540.10 = 131,363.80/x
  3. Step 3: Cross multiply
    147,693.40x = 221,540.10 × 131,363.80
  4. Step 4: Simplify right side
    147,693.40x = 29,102,349,388.38
  5. Step 5: Solve for x
    x = 29,102,349,388.38/147,693.40
  6. Step 6: Final answer
    x = 197,045.70

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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.