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Finding the Fourth Proportional to 152,222.70, 210,067.03 and 85,154.70

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Solution

The fourth proportional to 152,222.70, 210,067.03 and 85,154.70 is: 117,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,222.70 : 210,067.03 = 85,154.70 : x
  2. Step 2: Convert to fraction form
    152,222.70/210,067.03 = 85,154.70/x
  3. Step 3: Cross multiply
    152,222.70x = 210,067.03 × 85,154.70
  4. Step 4: Simplify right side
    152,222.70x = 17,888,194,919.54
  5. Step 5: Solve for x
    x = 17,888,194,919.54/152,222.70
  6. Step 6: Final answer
    x = 117,513.32

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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.