Home / 137,717.40-206,316.90-70,930.20

Finding the Fourth Proportional to 137,717.40, 206,316.90 and 70,930.20

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Solution

The fourth proportional to 137,717.40, 206,316.90 and 70,930.20 is: 106,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,717.40 : 206,316.90 = 70,930.20 : x
  2. Step 2: Convert to fraction form
    137,717.40/206,316.90 = 70,930.20/x
  3. Step 3: Cross multiply
    137,717.40x = 206,316.90 × 70,930.20
  4. Step 4: Simplify right side
    137,717.40x = 14,634,098,980.38
  5. Step 5: Solve for x
    x = 14,634,098,980.38/137,717.40
  6. Step 6: Final answer
    x = 106,261.80

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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.