Home / 131,428.70-196,851.45-52,502.30

Finding the Fourth Proportional to 131,428.70, 196,851.45 and 52,502.30

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Solution

The fourth proportional to 131,428.70, 196,851.45 and 52,502.30 is: 78,636.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,428.70 : 196,851.45 = 52,502.30 : x
  2. Step 2: Convert to fraction form
    131,428.70/196,851.45 = 52,502.30/x
  3. Step 3: Cross multiply
    131,428.70x = 196,851.45 × 52,502.30
  4. Step 4: Simplify right side
    131,428.70x = 10,335,153,883.34
  5. Step 5: Solve for x
    x = 10,335,153,883.34/131,428.70
  6. Step 6: Final answer
    x = 78,636.96

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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.