Home / 135,300.15-203,031.05-72,167.13

Finding the Fourth Proportional to 135,300.15, 203,031.05 and 72,167.13

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Solution

The fourth proportional to 135,300.15, 203,031.05 and 72,167.13 is: 108,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,300.15 : 203,031.05 = 72,167.13 : x
  2. Step 2: Convert to fraction form
    135,300.15/203,031.05 = 72,167.13/x
  3. Step 3: Cross multiply
    135,300.15x = 203,031.05 × 72,167.13
  4. Step 4: Simplify right side
    135,300.15x = 14,652,167,818.55
  5. Step 5: Solve for x
    x = 14,652,167,818.55/135,300.15
  6. Step 6: Final answer
    x = 108,293.80

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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.