Home / 147,514.60-221,343.90-68,588.20

Finding the Fourth Proportional to 147,514.60, 221,343.90 and 68,588.20

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Solution

The fourth proportional to 147,514.60, 221,343.90 and 68,588.20 is: 102,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,514.60 : 221,343.90 = 68,588.20 : x
  2. Step 2: Convert to fraction form
    147,514.60/221,343.90 = 68,588.20/x
  3. Step 3: Cross multiply
    147,514.60x = 221,343.90 × 68,588.20
  4. Step 4: Simplify right side
    147,514.60x = 15,181,579,681.98
  5. Step 5: Solve for x
    x = 15,181,579,681.98/147,514.60
  6. Step 6: Final answer
    x = 102,915.78

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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.