Home / 209,130.16-288,601.35-113,636.85

Finding the Fourth Proportional to 209,130.16, 288,601.35 and 113,636.85

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Solution

The fourth proportional to 209,130.16, 288,601.35 and 113,636.85 is: 156,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.16 : 288,601.35 = 113,636.85 : x
  2. Step 2: Convert to fraction form
    209,130.16/288,601.35 = 113,636.85/x
  3. Step 3: Cross multiply
    209,130.16x = 288,601.35 × 113,636.85
  4. Step 4: Simplify right side
    209,130.16x = 32,795,748,937.53
  5. Step 5: Solve for x
    x = 32,795,748,937.53/209,130.16
  6. Step 6: Final answer
    x = 156,819.80

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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.