Home / 209,314.80-288,851.13-113,820.66

Finding the Fourth Proportional to 209,314.80, 288,851.13 and 113,820.66

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Solution

The fourth proportional to 209,314.80, 288,851.13 and 113,820.66 is: 157,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,314.80 : 288,851.13 = 113,820.66 : x
  2. Step 2: Convert to fraction form
    209,314.80/288,851.13 = 113,820.66/x
  3. Step 3: Cross multiply
    209,314.80x = 288,851.13 × 113,820.66
  4. Step 4: Simplify right side
    209,314.80x = 32,877,226,258.35
  5. Step 5: Solve for x
    x = 32,877,226,258.35/209,314.80
  6. Step 6: Final answer
    x = 157,070.72

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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.