Home / 105,421.67-158,031.01-38,825.47

Finding the Fourth Proportional to 105,421.67, 158,031.01 and 38,825.47

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Solution

The fourth proportional to 105,421.67, 158,031.01 and 38,825.47 is: 58,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,421.67 : 158,031.01 = 38,825.47 : x
  2. Step 2: Convert to fraction form
    105,421.67/158,031.01 = 38,825.47/x
  3. Step 3: Cross multiply
    105,421.67x = 158,031.01 × 38,825.47
  4. Step 4: Simplify right side
    105,421.67x = 6,135,627,745.68
  5. Step 5: Solve for x
    x = 6,135,627,745.68/105,421.67
  6. Step 6: Final answer
    x = 58,200.82

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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.