Home / 209,340.90-288,892.56-113,849.70

Finding the Fourth Proportional to 209,340.90, 288,892.56 and 113,849.70

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Solution

The fourth proportional to 209,340.90, 288,892.56 and 113,849.70 is: 157,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,340.90 : 288,892.56 = 113,849.70 : x
  2. Step 2: Convert to fraction form
    209,340.90/288,892.56 = 113,849.70/x
  3. Step 3: Cross multiply
    209,340.90x = 288,892.56 × 113,849.70
  4. Step 4: Simplify right side
    209,340.90x = 32,890,331,288.23
  5. Step 5: Solve for x
    x = 32,890,331,288.23/209,340.90
  6. Step 6: Final answer
    x = 157,113.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.