Home / 199,788.19-299,203.54-145,607.66

Finding the Fourth Proportional to 199,788.19, 299,203.54 and 145,607.66

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Solution

The fourth proportional to 199,788.19, 299,203.54 and 145,607.66 is: 218,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,788.19 : 299,203.54 = 145,607.66 : x
  2. Step 2: Convert to fraction form
    199,788.19/299,203.54 = 145,607.66/x
  3. Step 3: Cross multiply
    199,788.19x = 299,203.54 × 145,607.66
  4. Step 4: Simplify right side
    199,788.19x = 43,566,326,892.23
  5. Step 5: Solve for x
    x = 43,566,326,892.23/199,788.19
  6. Step 6: Final answer
    x = 218,062.57

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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.