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Finding the Fourth Proportional to 143,646.60, 215,469.90 and 93,880.20

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Solution

The fourth proportional to 143,646.60, 215,469.90 and 93,880.20 is: 140,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,646.60 : 215,469.90 = 93,880.20 : x
  2. Step 2: Convert to fraction form
    143,646.60/215,469.90 = 93,880.20/x
  3. Step 3: Cross multiply
    143,646.60x = 215,469.90 × 93,880.20
  4. Step 4: Simplify right side
    143,646.60x = 20,228,357,305.98
  5. Step 5: Solve for x
    x = 20,228,357,305.98/143,646.60
  6. Step 6: Final answer
    x = 140,820.30

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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.