Home / 103,253.61-142,540.04-69,249.67

Finding the Fourth Proportional to 103,253.61, 142,540.04 and 69,249.67

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Solution

The fourth proportional to 103,253.61, 142,540.04 and 69,249.67 is: 95,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,253.61 : 142,540.04 = 69,249.67 : x
  2. Step 2: Convert to fraction form
    103,253.61/142,540.04 = 69,249.67/x
  3. Step 3: Cross multiply
    103,253.61x = 142,540.04 × 69,249.67
  4. Step 4: Simplify right side
    103,253.61x = 9,870,850,731.79
  5. Step 5: Solve for x
    x = 9,870,850,731.79/103,253.61
  6. Step 6: Final answer
    x = 95,598.12

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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.