Home / 139,974.47-193,165.42-76,312.26

Finding the Fourth Proportional to 139,974.47, 193,165.42 and 76,312.26

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Solution

The fourth proportional to 139,974.47, 193,165.42 and 76,312.26 is: 105,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974.47 : 193,165.42 = 76,312.26 : x
  2. Step 2: Convert to fraction form
    139,974.47/193,165.42 = 76,312.26/x
  3. Step 3: Cross multiply
    139,974.47x = 193,165.42 × 76,312.26
  4. Step 4: Simplify right side
    139,974.47x = 14,740,889,754.05
  5. Step 5: Solve for x
    x = 14,740,889,754.05/139,974.47
  6. Step 6: Final answer
    x = 105,311.27

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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.