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Finding the Fourth Proportional to 143,525.40, 215,201.70 and 73,541.40

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Solution

The fourth proportional to 143,525.40, 215,201.70 and 73,541.40 is: 110,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,525.40 : 215,201.70 = 73,541.40 : x
  2. Step 2: Convert to fraction form
    143,525.40/215,201.70 = 73,541.40/x
  3. Step 3: Cross multiply
    143,525.40x = 215,201.70 × 73,541.40
  4. Step 4: Simplify right side
    143,525.40x = 15,826,234,300.38
  5. Step 5: Solve for x
    x = 15,826,234,300.38/143,525.40
  6. Step 6: Final answer
    x = 110,267.83

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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.