Home / 143,412.08-215,147.16-60,306

Finding the Fourth Proportional to 143,412.08, 215,147.16 and 60,306

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Solution

The fourth proportional to 143,412.08, 215,147.16 and 60,306 is: 90,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,412.08 : 215,147.16 = 60,306 : x
  2. Step 2: Convert to fraction form
    143,412.08/215,147.16 = 60,306/x
  3. Step 3: Cross multiply
    143,412.08x = 215,147.16 × 60,306
  4. Step 4: Simplify right side
    143,412.08x = 12,974,664,630.96
  5. Step 5: Solve for x
    x = 12,974,664,630.96/143,412.08
  6. Step 6: Final answer
    x = 90,471.21

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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.