Home / 139,793.04-192,916.62-76,130.82

Finding the Fourth Proportional to 139,793.04, 192,916.62 and 76,130.82

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Solution

The fourth proportional to 139,793.04, 192,916.62 and 76,130.82 is: 105,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,793.04 : 192,916.62 = 76,130.82 : x
  2. Step 2: Convert to fraction form
    139,793.04/192,916.62 = 76,130.82/x
  3. Step 3: Cross multiply
    139,793.04x = 192,916.62 × 76,130.82
  4. Step 4: Simplify right side
    139,793.04x = 14,686,900,472.23
  5. Step 5: Solve for x
    x = 14,686,900,472.23/139,793.04
  6. Step 6: Final answer
    x = 105,061.74

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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.