Home / 123,764.50-170,780.80-69,309.07

Finding the Fourth Proportional to 123,764.50, 170,780.80 and 69,309.07

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Solution

The fourth proportional to 123,764.50, 170,780.80 and 69,309.07 is: 95,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.50 : 170,780.80 = 69,309.07 : x
  2. Step 2: Convert to fraction form
    123,764.50/170,780.80 = 69,309.07/x
  3. Step 3: Cross multiply
    123,764.50x = 170,780.80 × 69,309.07
  4. Step 4: Simplify right side
    123,764.50x = 11,836,658,421.86
  5. Step 5: Solve for x
    x = 11,836,658,421.86/123,764.50
  6. Step 6: Final answer
    x = 95,638.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.