Home / 209,266.18-288,785.90-113,772.86

Finding the Fourth Proportional to 209,266.18, 288,785.90 and 113,772.86

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Solution

The fourth proportional to 209,266.18, 288,785.90 and 113,772.86 is: 157,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,266.18 : 288,785.90 = 113,772.86 : x
  2. Step 2: Convert to fraction form
    209,266.18/288,785.90 = 113,772.86/x
  3. Step 3: Cross multiply
    209,266.18x = 288,785.90 × 113,772.86
  4. Step 4: Simplify right side
    209,266.18x = 32,855,997,770.67
  5. Step 5: Solve for x
    x = 32,855,997,770.67/209,266.18
  6. Step 6: Final answer
    x = 157,005.77

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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.