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Finding the Fourth Proportional to 124,487.85, 171,777 and 70,771.71

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Solution

The fourth proportional to 124,487.85, 171,777 and 70,771.71 is: 97,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,487.85 : 171,777 = 70,771.71 : x
  2. Step 2: Convert to fraction form
    124,487.85/171,777 = 70,771.71/x
  3. Step 3: Cross multiply
    124,487.85x = 171,777 × 70,771.71
  4. Step 4: Simplify right side
    124,487.85x = 12,156,952,028.67
  5. Step 5: Solve for x
    x = 12,156,952,028.67/124,487.85
  6. Step 6: Final answer
    x = 97,655.73

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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.