Home / 117,421.52-162,041.68-67,121.60

Finding the Fourth Proportional to 117,421.52, 162,041.68 and 67,121.60

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Solution

The fourth proportional to 117,421.52, 162,041.68 and 67,121.60 is: 92,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,421.52 : 162,041.68 = 67,121.60 : x
  2. Step 2: Convert to fraction form
    117,421.52/162,041.68 = 67,121.60/x
  3. Step 3: Cross multiply
    117,421.52x = 162,041.68 × 67,121.60
  4. Step 4: Simplify right side
    117,421.52x = 10,876,496,828.29
  5. Step 5: Solve for x
    x = 10,876,496,828.29/117,421.52
  6. Step 6: Final answer
    x = 92,627.80

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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.