Home / 209,162.52-288,646.10-113,669.20

Finding the Fourth Proportional to 209,162.52, 288,646.10 and 113,669.20

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Solution

The fourth proportional to 209,162.52, 288,646.10 and 113,669.20 is: 156,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,162.52 : 288,646.10 = 113,669.20 : x
  2. Step 2: Convert to fraction form
    209,162.52/288,646.10 = 113,669.20/x
  3. Step 3: Cross multiply
    209,162.52x = 288,646.10 × 113,669.20
  4. Step 4: Simplify right side
    209,162.52x = 32,810,170,701.77
  5. Step 5: Solve for x
    x = 32,810,170,701.77/209,162.52
  6. Step 6: Final answer
    x = 156,864.49

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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.