Home / 209,110.80-288,566.48-113,615.44

Finding the Fourth Proportional to 209,110.80, 288,566.48 and 113,615.44

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Solution

The fourth proportional to 209,110.80, 288,566.48 and 113,615.44 is: 156,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,110.80 : 288,566.48 = 113,615.44 : x
  2. Step 2: Convert to fraction form
    209,110.80/288,566.48 = 113,615.44/x
  3. Step 3: Cross multiply
    209,110.80x = 288,566.48 × 113,615.44
  4. Step 4: Simplify right side
    209,110.80x = 32,785,607,594.45
  5. Step 5: Solve for x
    x = 32,785,607,594.45/209,110.80
  6. Step 6: Final answer
    x = 156,785.82

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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.