Home / 107,759.12-148,696.40-66,359.53

Finding the Fourth Proportional to 107,759.12, 148,696.40 and 66,359.53

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Solution

The fourth proportional to 107,759.12, 148,696.40 and 66,359.53 is: 91,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,759.12 : 148,696.40 = 66,359.53 : x
  2. Step 2: Convert to fraction form
    107,759.12/148,696.40 = 66,359.53/x
  3. Step 3: Cross multiply
    107,759.12x = 148,696.40 × 66,359.53
  4. Step 4: Simplify right side
    107,759.12x = 9,867,423,050.79
  5. Step 5: Solve for x
    x = 9,867,423,050.79/107,759.12
  6. Step 6: Final answer
    x = 91,569.26

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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.