Home / 109,260.09-150,574.34-78,993.53

Finding the Fourth Proportional to 109,260.09, 150,574.34 and 78,993.53

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Solution

The fourth proportional to 109,260.09, 150,574.34 and 78,993.53 is: 108,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,260.09 : 150,574.34 = 78,993.53 : x
  2. Step 2: Convert to fraction form
    109,260.09/150,574.34 = 78,993.53/x
  3. Step 3: Cross multiply
    109,260.09x = 150,574.34 × 78,993.53
  4. Step 4: Simplify right side
    109,260.09x = 11,894,398,653.29
  5. Step 5: Solve for x
    x = 11,894,398,653.29/109,260.09
  6. Step 6: Final answer
    x = 108,863.16

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1.5x scale

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.