Home / 139,442.10-192,426.07-79,032.25

Finding the Fourth Proportional to 139,442.10, 192,426.07 and 79,032.25

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Solution

The fourth proportional to 139,442.10, 192,426.07 and 79,032.25 is: 109,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,442.10 : 192,426.07 = 79,032.25 : x
  2. Step 2: Convert to fraction form
    139,442.10/192,426.07 = 79,032.25/x
  3. Step 3: Cross multiply
    139,442.10x = 192,426.07 × 79,032.25
  4. Step 4: Simplify right side
    139,442.10x = 15,207,865,270.76
  5. Step 5: Solve for x
    x = 15,207,865,270.76/139,442.10
  6. Step 6: Final answer
    x = 109,062.22

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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.