Home / 123,351.35-170,225.38-66,762.72

Finding the Fourth Proportional to 123,351.35, 170,225.38 and 66,762.72

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Solution

The fourth proportional to 123,351.35, 170,225.38 and 66,762.72 is: 92,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,351.35 : 170,225.38 = 66,762.72 : x
  2. Step 2: Convert to fraction form
    123,351.35/170,225.38 = 66,762.72/x
  3. Step 3: Cross multiply
    123,351.35x = 170,225.38 × 66,762.72
  4. Step 4: Simplify right side
    123,351.35x = 11,364,709,381.83
  5. Step 5: Solve for x
    x = 11,364,709,381.83/123,351.35
  6. Step 6: Final answer
    x = 92,132.83

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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.