Home / 209,685.20-314,521.11-124,877.79

Finding the Fourth Proportional to 209,685.20, 314,521.11 and 124,877.79

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Solution

The fourth proportional to 209,685.20, 314,521.11 and 124,877.79 is: 187,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,685.20 : 314,521.11 = 124,877.79 : x
  2. Step 2: Convert to fraction form
    209,685.20/314,521.11 = 124,877.79/x
  3. Step 3: Cross multiply
    209,685.20x = 314,521.11 × 124,877.79
  4. Step 4: Simplify right side
    209,685.20x = 39,276,701,125.15
  5. Step 5: Solve for x
    x = 39,276,701,125.15/209,685.20
  6. Step 6: Final answer
    x = 187,312.71

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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.