Home / 209,177.08-288,666.60-113,683.78

Finding the Fourth Proportional to 209,177.08, 288,666.60 and 113,683.78

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Solution

The fourth proportional to 209,177.08, 288,666.60 and 113,683.78 is: 156,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,177.08 : 288,666.60 = 113,683.78 : x
  2. Step 2: Convert to fraction form
    209,177.08/288,666.60 = 113,683.78/x
  3. Step 3: Cross multiply
    209,177.08x = 288,666.60 × 113,683.78
  4. Step 4: Simplify right side
    209,177.08x = 32,816,710,247.75
  5. Step 5: Solve for x
    x = 32,816,710,247.75/209,177.08
  6. Step 6: Final answer
    x = 156,884.83

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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.