Home / 146,005.20-218,856.60-79,304.40

Finding the Fourth Proportional to 146,005.20, 218,856.60 and 79,304.40

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Solution

The fourth proportional to 146,005.20, 218,856.60 and 79,304.40 is: 118,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,005.20 : 218,856.60 = 79,304.40 : x
  2. Step 2: Convert to fraction form
    146,005.20/218,856.60 = 79,304.40/x
  3. Step 3: Cross multiply
    146,005.20x = 218,856.60 × 79,304.40
  4. Step 4: Simplify right side
    146,005.20x = 17,356,291,349.04
  5. Step 5: Solve for x
    x = 17,356,291,349.04/146,005.20
  6. Step 6: Final answer
    x = 118,874.47

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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.