Home / 121,148.46-181,747.08-42,241.50

Finding the Fourth Proportional to 121,148.46, 181,747.08 and 42,241.50

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Solution

The fourth proportional to 121,148.46, 181,747.08 and 42,241.50 is: 63,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.46 : 181,747.08 = 42,241.50 : x
  2. Step 2: Convert to fraction form
    121,148.46/181,747.08 = 42,241.50/x
  3. Step 3: Cross multiply
    121,148.46x = 181,747.08 × 42,241.50
  4. Step 4: Simplify right side
    121,148.46x = 7,677,269,279.82
  5. Step 5: Solve for x
    x = 7,677,269,279.82/121,148.46
  6. Step 6: Final answer
    x = 63,370.75

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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.