Home / 146,890.20-220,335.30-145,853.40

Finding the Fourth Proportional to 146,890.20, 220,335.30 and 145,853.40

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Solution

The fourth proportional to 146,890.20, 220,335.30 and 145,853.40 is: 218,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,890.20 : 220,335.30 = 145,853.40 : x
  2. Step 2: Convert to fraction form
    146,890.20/220,335.30 = 145,853.40/x
  3. Step 3: Cross multiply
    146,890.20x = 220,335.30 × 145,853.40
  4. Step 4: Simplify right side
    146,890.20x = 32,136,652,645.02
  5. Step 5: Solve for x
    x = 32,136,652,645.02/146,890.20
  6. Step 6: Final answer
    x = 218,780.10

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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.