Home / 158,168.38-218,271.78-85,571.46

Finding the Fourth Proportional to 158,168.38, 218,271.78 and 85,571.46

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Solution

The fourth proportional to 158,168.38, 218,271.78 and 85,571.46 is: 118,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,168.38 : 218,271.78 = 85,571.46 : x
  2. Step 2: Convert to fraction form
    158,168.38/218,271.78 = 85,571.46/x
  3. Step 3: Cross multiply
    158,168.38x = 218,271.78 × 85,571.46
  4. Step 4: Simplify right side
    158,168.38x = 18,677,834,785.23
  5. Step 5: Solve for x
    x = 18,677,834,785.23/158,168.38
  6. Step 6: Final answer
    x = 118,088.30

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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.