Home / 139,907.32-193,071.81-76,244.97

Finding the Fourth Proportional to 139,907.32, 193,071.81 and 76,244.97

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Solution

The fourth proportional to 139,907.32, 193,071.81 and 76,244.97 is: 105,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,907.32 : 193,071.81 = 76,244.97 : x
  2. Step 2: Convert to fraction form
    139,907.32/193,071.81 = 76,244.97/x
  3. Step 3: Cross multiply
    139,907.32x = 193,071.81 × 76,244.97
  4. Step 4: Simplify right side
    139,907.32x = 14,720,754,361.30
  5. Step 5: Solve for x
    x = 14,720,754,361.30/139,907.32
  6. Step 6: Final answer
    x = 105,217.90

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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.