Home / 209,823.30-314,784.12-83,470.73

Finding the Fourth Proportional to 209,823.30, 314,784.12 and 83,470.73

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Solution

The fourth proportional to 209,823.30, 314,784.12 and 83,470.73 is: 125,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,823.30 : 314,784.12 = 83,470.73 : x
  2. Step 2: Convert to fraction form
    209,823.30/314,784.12 = 83,470.73/x
  3. Step 3: Cross multiply
    209,823.30x = 314,784.12 × 83,470.73
  4. Step 4: Simplify right side
    209,823.30x = 26,275,258,714.89
  5. Step 5: Solve for x
    x = 26,275,258,714.89/209,823.30
  6. Step 6: Final answer
    x = 125,225.65

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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.