Home / 103,042.06-142,246.73-69,072.75

Finding the Fourth Proportional to 103,042.06, 142,246.73 and 69,072.75

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Solution

The fourth proportional to 103,042.06, 142,246.73 and 69,072.75 is: 95,353.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,042.06 : 142,246.73 = 69,072.75 : x
  2. Step 2: Convert to fraction form
    103,042.06/142,246.73 = 69,072.75/x
  3. Step 3: Cross multiply
    103,042.06x = 142,246.73 × 69,072.75
  4. Step 4: Simplify right side
    103,042.06x = 9,825,372,992.29
  5. Step 5: Solve for x
    x = 9,825,372,992.29/103,042.06
  6. Step 6: Final answer
    x = 95,353.04

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1.5x scale

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.