Home / 209,140.30-288,613.40-113,646.77

Finding the Fourth Proportional to 209,140.30, 288,613.40 and 113,646.77

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Solution

The fourth proportional to 209,140.30, 288,613.40 and 113,646.77 is: 156,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,140.30 : 288,613.40 = 113,646.77 : x
  2. Step 2: Convert to fraction form
    209,140.30/288,613.40 = 113,646.77/x
  3. Step 3: Cross multiply
    209,140.30x = 288,613.40 × 113,646.77
  4. Step 4: Simplify right side
    209,140.30x = 32,799,980,546.66
  5. Step 5: Solve for x
    x = 32,799,980,546.66/209,140.30
  6. Step 6: Final answer
    x = 156,832.42

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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.