Home / 209,342.88-288,895.28-113,851.72

Finding the Fourth Proportional to 209,342.88, 288,895.28 and 113,851.72

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Solution

The fourth proportional to 209,342.88, 288,895.28 and 113,851.72 is: 157,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,342.88 : 288,895.28 = 113,851.72 : x
  2. Step 2: Convert to fraction form
    209,342.88/288,895.28 = 113,851.72/x
  3. Step 3: Cross multiply
    209,342.88x = 288,895.28 × 113,851.72
  4. Step 4: Simplify right side
    209,342.88x = 32,891,224,527.88
  5. Step 5: Solve for x
    x = 32,891,224,527.88/209,342.88
  6. Step 6: Final answer
    x = 157,116.52

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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.