Home / 137,678.81-206,432.15-57,695.16

Finding the Fourth Proportional to 137,678.81, 206,432.15 and 57,695.16

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Solution

The fourth proportional to 137,678.81, 206,432.15 and 57,695.16 is: 86,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,678.81 : 206,432.15 = 57,695.16 : x
  2. Step 2: Convert to fraction form
    137,678.81/206,432.15 = 57,695.16/x
  3. Step 3: Cross multiply
    137,678.81x = 206,432.15 × 57,695.16
  4. Step 4: Simplify right side
    137,678.81x = 11,910,135,634.92
  5. Step 5: Solve for x
    x = 11,910,135,634.92/137,678.81
  6. Step 6: Final answer
    x = 86,506.67

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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.