Home / 135,030.86-202,673.42-68,518.72

Finding the Fourth Proportional to 135,030.86, 202,673.42 and 68,518.72

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Solution

The fourth proportional to 135,030.86, 202,673.42 and 68,518.72 is: 102,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,030.86 : 202,673.42 = 68,518.72 : x
  2. Step 2: Convert to fraction form
    135,030.86/202,673.42 = 68,518.72/x
  3. Step 3: Cross multiply
    135,030.86x = 202,673.42 × 68,518.72
  4. Step 4: Simplify right side
    135,030.86x = 13,886,923,316.42
  5. Step 5: Solve for x
    x = 13,886,923,316.42/135,030.86
  6. Step 6: Final answer
    x = 102,842.59

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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.