Home / 146,717.40-220,076.10-99,478.20

Finding the Fourth Proportional to 146,717.40, 220,076.10 and 99,478.20

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Solution

The fourth proportional to 146,717.40, 220,076.10 and 99,478.20 is: 149,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,717.40 : 220,076.10 = 99,478.20 : x
  2. Step 2: Convert to fraction form
    146,717.40/220,076.10 = 99,478.20/x
  3. Step 3: Cross multiply
    146,717.40x = 220,076.10 × 99,478.20
  4. Step 4: Simplify right side
    146,717.40x = 21,892,774,291.02
  5. Step 5: Solve for x
    x = 21,892,774,291.02/146,717.40
  6. Step 6: Final answer
    x = 149,217.30

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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.