Home / 112,519.64-155,292.54-67,799

Finding the Fourth Proportional to 112,519.64, 155,292.54 and 67,799

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Solution

The fourth proportional to 112,519.64, 155,292.54 and 67,799 is: 93,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,519.64 : 155,292.54 = 67,799 : x
  2. Step 2: Convert to fraction form
    112,519.64/155,292.54 = 67,799/x
  3. Step 3: Cross multiply
    112,519.64x = 155,292.54 × 67,799
  4. Step 4: Simplify right side
    112,519.64x = 10,528,678,919.46
  5. Step 5: Solve for x
    x = 10,528,678,919.46/112,519.64
  6. Step 6: Final answer
    x = 93,571.92

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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.