Home / 121,548.40-182,322.60-51,418.60

Finding the Fourth Proportional to 121,548.40, 182,322.60 and 51,418.60

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Solution

The fourth proportional to 121,548.40, 182,322.60 and 51,418.60 is: 77,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,548.40 : 182,322.60 = 51,418.60 : x
  2. Step 2: Convert to fraction form
    121,548.40/182,322.60 = 51,418.60/x
  3. Step 3: Cross multiply
    121,548.40x = 182,322.60 × 51,418.60
  4. Step 4: Simplify right side
    121,548.40x = 9,374,772,840.36
  5. Step 5: Solve for x
    x = 9,374,772,840.36/121,548.40
  6. Step 6: Final answer
    x = 77,127.90

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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.