Home / 139,541.13-192,565.35-75,877.56

Finding the Fourth Proportional to 139,541.13, 192,565.35 and 75,877.56

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Solution

The fourth proportional to 139,541.13, 192,565.35 and 75,877.56 is: 104,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,541.13 : 192,565.35 = 75,877.56 : x
  2. Step 2: Convert to fraction form
    139,541.13/192,565.35 = 75,877.56/x
  3. Step 3: Cross multiply
    139,541.13x = 192,565.35 × 75,877.56
  4. Step 4: Simplify right side
    139,541.13x = 14,611,388,898.55
  5. Step 5: Solve for x
    x = 14,611,388,898.55/139,541.13
  6. Step 6: Final answer
    x = 104,710.27

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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.