Home / 121,818.88-182,820.64-51,747.36

Finding the Fourth Proportional to 121,818.88, 182,820.64 and 51,747.36

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Solution

The fourth proportional to 121,818.88, 182,820.64 and 51,747.36 is: 77,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,818.88 : 182,820.64 = 51,747.36 : x
  2. Step 2: Convert to fraction form
    121,818.88/182,820.64 = 51,747.36/x
  3. Step 3: Cross multiply
    121,818.88x = 182,820.64 × 51,747.36
  4. Step 4: Simplify right side
    121,818.88x = 9,460,485,473.51
  5. Step 5: Solve for x
    x = 9,460,485,473.51/121,818.88
  6. Step 6: Final answer
    x = 77,660.26

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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.