Home / 153,796.20-230,612.04-78,885.72

Finding the Fourth Proportional to 153,796.20, 230,612.04 and 78,885.72

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Solution

The fourth proportional to 153,796.20, 230,612.04 and 78,885.72 is: 118,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,796.20 : 230,612.04 = 78,885.72 : x
  2. Step 2: Convert to fraction form
    153,796.20/230,612.04 = 78,885.72/x
  3. Step 3: Cross multiply
    153,796.20x = 230,612.04 × 78,885.72
  4. Step 4: Simplify right side
    153,796.20x = 18,191,996,816.07
  5. Step 5: Solve for x
    x = 18,191,996,816.07/153,796.20
  6. Step 6: Final answer
    x = 118,286.39

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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.