Home / 121,168.40-181,752.66-54,530.69

Finding the Fourth Proportional to 121,168.40, 181,752.66 and 54,530.69

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Solution

The fourth proportional to 121,168.40, 181,752.66 and 54,530.69 is: 81,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,168.40 : 181,752.66 = 54,530.69 : x
  2. Step 2: Convert to fraction form
    121,168.40/181,752.66 = 54,530.69/x
  3. Step 3: Cross multiply
    121,168.40x = 181,752.66 × 54,530.69
  4. Step 4: Simplify right side
    121,168.40x = 9,911,097,050.37
  5. Step 5: Solve for x
    x = 9,911,097,050.37/121,168.40
  6. Step 6: Final answer
    x = 81,796.06

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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.