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Finding the Fourth Proportional to 150,199.93, 207,271.80 and 85,667.71

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Solution

The fourth proportional to 150,199.93, 207,271.80 and 85,667.71 is: 118,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,199.93 : 207,271.80 = 85,667.71 : x
  2. Step 2: Convert to fraction form
    150,199.93/207,271.80 = 85,667.71/x
  3. Step 3: Cross multiply
    150,199.93x = 207,271.80 × 85,667.71
  4. Step 4: Simplify right side
    150,199.93x = 17,756,500,453.58
  5. Step 5: Solve for x
    x = 17,756,500,453.58/150,199.93
  6. Step 6: Final answer
    x = 118,219.10

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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.