Home / 143,748.50-215,337.53-67,742.96

Finding the Fourth Proportional to 143,748.50, 215,337.53 and 67,742.96

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Solution

The fourth proportional to 143,748.50, 215,337.53 and 67,742.96 is: 101,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,748.50 : 215,337.53 = 67,742.96 : x
  2. Step 2: Convert to fraction form
    143,748.50/215,337.53 = 67,742.96/x
  3. Step 3: Cross multiply
    143,748.50x = 215,337.53 × 67,742.96
  4. Step 4: Simplify right side
    143,748.50x = 14,587,601,681.29
  5. Step 5: Solve for x
    x = 14,587,601,681.29/143,748.50
  6. Step 6: Final answer
    x = 101,480.03

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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.