Home / 109,165.14-150,639.78-61,409.28

Finding the Fourth Proportional to 109,165.14, 150,639.78 and 61,409.28

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Solution

The fourth proportional to 109,165.14, 150,639.78 and 61,409.28 is: 84,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,165.14 : 150,639.78 = 61,409.28 : x
  2. Step 2: Convert to fraction form
    109,165.14/150,639.78 = 61,409.28/x
  3. Step 3: Cross multiply
    109,165.14x = 150,639.78 × 61,409.28
  4. Step 4: Simplify right side
    109,165.14x = 9,250,680,429.16
  5. Step 5: Solve for x
    x = 9,250,680,429.16/109,165.14
  6. Step 6: Final answer
    x = 84,740.24

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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.