Home / 121,412.74-181,844.07-65,154.82

Finding the Fourth Proportional to 121,412.74, 181,844.07 and 65,154.82

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Solution

The fourth proportional to 121,412.74, 181,844.07 and 65,154.82 is: 97,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,412.74 : 181,844.07 = 65,154.82 : x
  2. Step 2: Convert to fraction form
    121,412.74/181,844.07 = 65,154.82/x
  3. Step 3: Cross multiply
    121,412.74x = 181,844.07 × 65,154.82
  4. Step 4: Simplify right side
    121,412.74x = 11,848,017,648.92
  5. Step 5: Solve for x
    x = 11,848,017,648.92/121,412.74
  6. Step 6: Final answer
    x = 97,584.63

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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.