Home / 139,261.77-192,182.13-75,599.55

Finding the Fourth Proportional to 139,261.77, 192,182.13 and 75,599.55

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Solution

The fourth proportional to 139,261.77, 192,182.13 and 75,599.55 is: 104,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.77 : 192,182.13 = 75,599.55 : x
  2. Step 2: Convert to fraction form
    139,261.77/192,182.13 = 75,599.55/x
  3. Step 3: Cross multiply
    139,261.77x = 192,182.13 × 75,599.55
  4. Step 4: Simplify right side
    139,261.77x = 14,528,882,546.04
  5. Step 5: Solve for x
    x = 14,528,882,546.04/139,261.77
  6. Step 6: Final answer
    x = 104,327.86

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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.