Home / 139,436.51-192,423.60-75,774.30

Finding the Fourth Proportional to 139,436.51, 192,423.60 and 75,774.30

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Solution

The fourth proportional to 139,436.51, 192,423.60 and 75,774.30 is: 104,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,436.51 : 192,423.60 = 75,774.30 : x
  2. Step 2: Convert to fraction form
    139,436.51/192,423.60 = 75,774.30/x
  3. Step 3: Cross multiply
    139,436.51x = 192,423.60 × 75,774.30
  4. Step 4: Simplify right side
    139,436.51x = 14,580,763,593.48
  5. Step 5: Solve for x
    x = 14,580,763,593.48/139,436.51
  6. Step 6: Final answer
    x = 104,569.20

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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.