Home / 132,876.21-183,369.99-72,447.86

Finding the Fourth Proportional to 132,876.21, 183,369.99 and 72,447.86

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Solution

The fourth proportional to 132,876.21, 183,369.99 and 72,447.86 is: 99,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,876.21 : 183,369.99 = 72,447.86 : x
  2. Step 2: Convert to fraction form
    132,876.21/183,369.99 = 72,447.86/x
  3. Step 3: Cross multiply
    132,876.21x = 183,369.99 × 72,447.86
  4. Step 4: Simplify right side
    132,876.21x = 13,284,762,718.55
  5. Step 5: Solve for x
    x = 13,284,762,718.55/132,876.21
  6. Step 6: Final answer
    x = 99,978.49

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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.