Home / 123,059.07-169,821.52-66,470.45

Finding the Fourth Proportional to 123,059.07, 169,821.52 and 66,470.45

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Solution

The fourth proportional to 123,059.07, 169,821.52 and 66,470.45 is: 91,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,059.07 : 169,821.52 = 66,470.45 : x
  2. Step 2: Convert to fraction form
    123,059.07/169,821.52 = 66,470.45/x
  3. Step 3: Cross multiply
    123,059.07x = 169,821.52 × 66,470.45
  4. Step 4: Simplify right side
    123,059.07x = 11,288,111,838.80
  5. Step 5: Solve for x
    x = 11,288,111,838.80/123,059.07
  6. Step 6: Final answer
    x = 91,729.21

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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.