Home / 209,811.30-314,848.17-85,152.30

Finding the Fourth Proportional to 209,811.30, 314,848.17 and 85,152.30

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Solution

The fourth proportional to 209,811.30, 314,848.17 and 85,152.30 is: 127,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.30 : 314,848.17 = 85,152.30 : x
  2. Step 2: Convert to fraction form
    209,811.30/314,848.17 = 85,152.30/x
  3. Step 3: Cross multiply
    209,811.30x = 314,848.17 × 85,152.30
  4. Step 4: Simplify right side
    209,811.30x = 26,810,045,826.29
  5. Step 5: Solve for x
    x = 26,810,045,826.29/209,811.30
  6. Step 6: Final answer
    x = 127,781.71

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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.