Home / 157,204.20-235,658.07-78,243.78

Finding the Fourth Proportional to 157,204.20, 235,658.07 and 78,243.78

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Solution

The fourth proportional to 157,204.20, 235,658.07 and 78,243.78 is: 117,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,204.20 : 235,658.07 = 78,243.78 : x
  2. Step 2: Convert to fraction form
    157,204.20/235,658.07 = 78,243.78/x
  3. Step 3: Cross multiply
    157,204.20x = 235,658.07 × 78,243.78
  4. Step 4: Simplify right side
    157,204.20x = 18,438,778,184.30
  5. Step 5: Solve for x
    x = 18,438,778,184.30/157,204.20
  6. Step 6: Final answer
    x = 117,291.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.