Home / 139,974.53-193,164.84-79,545.29

Finding the Fourth Proportional to 139,974.53, 193,164.84 and 79,545.29

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Solution

The fourth proportional to 139,974.53, 193,164.84 and 79,545.29 is: 109,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974.53 : 193,164.84 = 79,545.29 : x
  2. Step 2: Convert to fraction form
    139,974.53/193,164.84 = 79,545.29/x
  3. Step 3: Cross multiply
    139,974.53x = 193,164.84 × 79,545.29
  4. Step 4: Simplify right side
    139,974.53x = 15,365,352,931.55
  5. Step 5: Solve for x
    x = 15,365,352,931.55/139,974.53
  6. Step 6: Final answer
    x = 109,772.49

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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.