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Finding the Fourth Proportional to 178,859.70, 268,289.55 and 108,000.90

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Solution

The fourth proportional to 178,859.70, 268,289.55 and 108,000.90 is: 162,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,859.70 : 268,289.55 = 108,000.90 : x
  2. Step 2: Convert to fraction form
    178,859.70/268,289.55 = 108,000.90/x
  3. Step 3: Cross multiply
    178,859.70x = 268,289.55 × 108,000.90
  4. Step 4: Simplify right side
    178,859.70x = 28,975,512,860.60
  5. Step 5: Solve for x
    x = 28,975,512,860.60/178,859.70
  6. Step 6: Final answer
    x = 162,001.35

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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.