Home / 121,147.40-181,656.30-50,947.40

Finding the Fourth Proportional to 121,147.40, 181,656.30 and 50,947.40

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Solution

The fourth proportional to 121,147.40, 181,656.30 and 50,947.40 is: 76,393.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,147.40 : 181,656.30 = 50,947.40 : x
  2. Step 2: Convert to fraction form
    121,147.40/181,656.30 = 50,947.40/x
  3. Step 3: Cross multiply
    121,147.40x = 181,656.30 × 50,947.40
  4. Step 4: Simplify right side
    121,147.40x = 9,254,916,178.62
  5. Step 5: Solve for x
    x = 9,254,916,178.62/121,147.40
  6. Step 6: Final answer
    x = 76,393.85

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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.