Home / 121,771.38-168,037.26-67,320.28

Finding the Fourth Proportional to 121,771.38, 168,037.26 and 67,320.28

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Solution

The fourth proportional to 121,771.38, 168,037.26 and 67,320.28 is: 92,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,771.38 : 168,037.26 = 67,320.28 : x
  2. Step 2: Convert to fraction form
    121,771.38/168,037.26 = 67,320.28/x
  3. Step 3: Cross multiply
    121,771.38x = 168,037.26 × 67,320.28
  4. Step 4: Simplify right side
    121,771.38x = 11,312,315,351.23
  5. Step 5: Solve for x
    x = 11,312,315,351.23/121,771.38
  6. Step 6: Final answer
    x = 92,897.98

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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.