Home / 109,143.81-150,616.89-61,397.19

Finding the Fourth Proportional to 109,143.81, 150,616.89 and 61,397.19

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Solution

The fourth proportional to 109,143.81, 150,616.89 and 61,397.19 is: 84,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,143.81 : 150,616.89 = 61,397.19 : x
  2. Step 2: Convert to fraction form
    109,143.81/150,616.89 = 61,397.19/x
  3. Step 3: Cross multiply
    109,143.81x = 150,616.89 × 61,397.19
  4. Step 4: Simplify right side
    109,143.81x = 9,247,453,812.54
  5. Step 5: Solve for x
    x = 9,247,453,812.54/109,143.81
  6. Step 6: Final answer
    x = 84,727.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.