Home / 115,222.28-158,989.76-66,822.14

Finding the Fourth Proportional to 115,222.28, 158,989.76 and 66,822.14

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Solution

The fourth proportional to 115,222.28, 158,989.76 and 66,822.14 is: 92,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,222.28 : 158,989.76 = 66,822.14 : x
  2. Step 2: Convert to fraction form
    115,222.28/158,989.76 = 66,822.14/x
  3. Step 3: Cross multiply
    115,222.28x = 158,989.76 × 66,822.14
  4. Step 4: Simplify right side
    115,222.28x = 10,624,035,667.18
  5. Step 5: Solve for x
    x = 10,624,035,667.18/115,222.28
  6. Step 6: Final answer
    x = 92,204.70

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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.