Home / 209,149.12-288,625.20-113,655.84

Finding the Fourth Proportional to 209,149.12, 288,625.20 and 113,655.84

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Solution

The fourth proportional to 209,149.12, 288,625.20 and 113,655.84 is: 156,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,149.12 : 288,625.20 = 113,655.84 : x
  2. Step 2: Convert to fraction form
    209,149.12/288,625.20 = 113,655.84/x
  3. Step 3: Cross multiply
    209,149.12x = 288,625.20 × 113,655.84
  4. Step 4: Simplify right side
    209,149.12x = 32,803,939,551.17
  5. Step 5: Solve for x
    x = 32,803,939,551.17/209,149.12
  6. Step 6: Final answer
    x = 156,844.74

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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.