Home / 121,785.37-168,052.27-68,069.16

Finding the Fourth Proportional to 121,785.37, 168,052.27 and 68,069.16

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Solution

The fourth proportional to 121,785.37, 168,052.27 and 68,069.16 is: 93,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,785.37 : 168,052.27 = 68,069.16 : x
  2. Step 2: Convert to fraction form
    121,785.37/168,052.27 = 68,069.16/x
  3. Step 3: Cross multiply
    121,785.37x = 168,052.27 × 68,069.16
  4. Step 4: Simplify right side
    121,785.37x = 11,439,176,812.45
  5. Step 5: Solve for x
    x = 11,439,176,812.45/121,785.37
  6. Step 6: Final answer
    x = 93,928.99

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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.