Home / 209,386.89-314,115.66-97,021.53

Finding the Fourth Proportional to 209,386.89, 314,115.66 and 97,021.53

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Solution

The fourth proportional to 209,386.89, 314,115.66 and 97,021.53 is: 145,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,386.89 : 314,115.66 = 97,021.53 : x
  2. Step 2: Convert to fraction form
    209,386.89/314,115.66 = 97,021.53/x
  3. Step 3: Cross multiply
    209,386.89x = 314,115.66 × 97,021.53
  4. Step 4: Simplify right side
    209,386.89x = 30,475,981,930.16
  5. Step 5: Solve for x
    x = 30,475,981,930.16/209,386.89
  6. Step 6: Final answer
    x = 145,548.66

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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.