Home / 135,920.25-187,569.95-76,304.25

Finding the Fourth Proportional to 135,920.25, 187,569.95 and 76,304.25

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Solution

The fourth proportional to 135,920.25, 187,569.95 and 76,304.25 is: 105,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,920.25 : 187,569.95 = 76,304.25 : x
  2. Step 2: Convert to fraction form
    135,920.25/187,569.95 = 76,304.25/x
  3. Step 3: Cross multiply
    135,920.25x = 187,569.95 × 76,304.25
  4. Step 4: Simplify right side
    135,920.25x = 14,312,383,975.77
  5. Step 5: Solve for x
    x = 14,312,383,975.77/135,920.25
  6. Step 6: Final answer
    x = 105,299.87

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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.