Home / 217,139.04-325,821.06-145,142.33

Finding the Fourth Proportional to 217,139.04, 325,821.06 and 145,142.33

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Solution

The fourth proportional to 217,139.04, 325,821.06 and 145,142.33 is: 217,788.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,139.04 : 325,821.06 = 145,142.33 : x
  2. Step 2: Convert to fraction form
    217,139.04/325,821.06 = 145,142.33/x
  3. Step 3: Cross multiply
    217,139.04x = 325,821.06 × 145,142.33
  4. Step 4: Simplify right side
    217,139.04x = 47,290,426,182.36
  5. Step 5: Solve for x
    x = 47,290,426,182.36/217,139.04
  6. Step 6: Final answer
    x = 217,788.69

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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.