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Finding the Fourth Proportional to 166,688.78, 250,130.91 and 61,581.02

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Solution

The fourth proportional to 166,688.78, 250,130.91 and 61,581.02 is: 92,407.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,688.78 : 250,130.91 = 61,581.02 : x
  2. Step 2: Convert to fraction form
    166,688.78/250,130.91 = 61,581.02/x
  3. Step 3: Cross multiply
    166,688.78x = 250,130.91 × 61,581.02
  4. Step 4: Simplify right side
    166,688.78x = 15,403,316,571.33
  5. Step 5: Solve for x
    x = 15,403,316,571.33/166,688.78
  6. Step 6: Final answer
    x = 92,407.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.