Home / 123,501.60-170,432.37-66,912.93

Finding the Fourth Proportional to 123,501.60, 170,432.37 and 66,912.93

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Solution

The fourth proportional to 123,501.60, 170,432.37 and 66,912.93 is: 92,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,501.60 : 170,432.37 = 66,912.93 : x
  2. Step 2: Convert to fraction form
    123,501.60/170,432.37 = 66,912.93/x
  3. Step 3: Cross multiply
    123,501.60x = 170,432.37 × 66,912.93
  4. Step 4: Simplify right side
    123,501.60x = 11,404,129,243.54
  5. Step 5: Solve for x
    x = 11,404,129,243.54/123,501.60
  6. Step 6: Final answer
    x = 92,339.93

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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.