Home / 112,758.94-155,425.98-76,448.62

Finding the Fourth Proportional to 112,758.94, 155,425.98 and 76,448.62

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Solution

The fourth proportional to 112,758.94, 155,425.98 and 76,448.62 is: 105,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,758.94 : 155,425.98 = 76,448.62 : x
  2. Step 2: Convert to fraction form
    112,758.94/155,425.98 = 76,448.62/x
  3. Step 3: Cross multiply
    112,758.94x = 155,425.98 × 76,448.62
  4. Step 4: Simplify right side
    112,758.94x = 11,882,101,683.15
  5. Step 5: Solve for x
    x = 11,882,101,683.15/112,758.94
  6. Step 6: Final answer
    x = 105,376.14

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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.