Home / 139,946.28-193,118.57-79,508.53

Finding the Fourth Proportional to 139,946.28, 193,118.57 and 79,508.53

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Solution

The fourth proportional to 139,946.28, 193,118.57 and 79,508.53 is: 109,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,946.28 : 193,118.57 = 79,508.53 : x
  2. Step 2: Convert to fraction form
    139,946.28/193,118.57 = 79,508.53/x
  3. Step 3: Cross multiply
    139,946.28x = 193,118.57 × 79,508.53
  4. Step 4: Simplify right side
    139,946.28x = 15,354,574,205.65
  5. Step 5: Solve for x
    x = 15,354,574,205.65/139,946.28
  6. Step 6: Final answer
    x = 109,717.63

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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.