Home / 105,377.32-158,091.90-74,273.32

Finding the Fourth Proportional to 105,377.32, 158,091.90 and 74,273.32

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Solution

The fourth proportional to 105,377.32, 158,091.90 and 74,273.32 is: 111,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,377.32 : 158,091.90 = 74,273.32 : x
  2. Step 2: Convert to fraction form
    105,377.32/158,091.90 = 74,273.32/x
  3. Step 3: Cross multiply
    105,377.32x = 158,091.90 × 74,273.32
  4. Step 4: Simplify right side
    105,377.32x = 11,742,010,278.11
  5. Step 5: Solve for x
    x = 11,742,010,278.11/105,377.32
  6. Step 6: Final answer
    x = 111,428.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.