Home / 117,421.50-162,041.67-67,121.58

Finding the Fourth Proportional to 117,421.50, 162,041.67 and 67,121.58

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Solution

The fourth proportional to 117,421.50, 162,041.67 and 67,121.58 is: 92,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,421.50 : 162,041.67 = 67,121.58 : x
  2. Step 2: Convert to fraction form
    117,421.50/162,041.67 = 67,121.58/x
  3. Step 3: Cross multiply
    117,421.50x = 162,041.67 × 67,121.58
  4. Step 4: Simplify right side
    117,421.50x = 10,876,492,916.24
  5. Step 5: Solve for x
    x = 10,876,492,916.24/117,421.50
  6. Step 6: Final answer
    x = 92,627.78

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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.