Home / 123,329.23-170,194.87-66,740.61

Finding the Fourth Proportional to 123,329.23, 170,194.87 and 66,740.61

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Solution

The fourth proportional to 123,329.23, 170,194.87 and 66,740.61 is: 92,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329.23 : 170,194.87 = 66,740.61 : x
  2. Step 2: Convert to fraction form
    123,329.23/170,194.87 = 66,740.61/x
  3. Step 3: Cross multiply
    123,329.23x = 170,194.87 × 66,740.61
  4. Step 4: Simplify right side
    123,329.23x = 11,358,908,887.87
  5. Step 5: Solve for x
    x = 11,358,908,887.87/123,329.23
  6. Step 6: Final answer
    x = 92,102.32

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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.