Home / 156,747.30-235,161.48-67,980.30

Finding the Fourth Proportional to 156,747.30, 235,161.48 and 67,980.30

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Solution

The fourth proportional to 156,747.30, 235,161.48 and 67,980.30 is: 101,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.30 : 235,161.48 = 67,980.30 : x
  2. Step 2: Convert to fraction form
    156,747.30/235,161.48 = 67,980.30/x
  3. Step 3: Cross multiply
    156,747.30x = 235,161.48 × 67,980.30
  4. Step 4: Simplify right side
    156,747.30x = 15,986,347,958.84
  5. Step 5: Solve for x
    x = 15,986,347,958.84/156,747.30
  6. Step 6: Final answer
    x = 101,988.03

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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.