Home / 122,306.37-168,626.54-79,209.71

Finding the Fourth Proportional to 122,306.37, 168,626.54 and 79,209.71

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Solution

The fourth proportional to 122,306.37, 168,626.54 and 79,209.71 is: 109,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,306.37 : 168,626.54 = 79,209.71 : x
  2. Step 2: Convert to fraction form
    122,306.37/168,626.54 = 79,209.71/x
  3. Step 3: Cross multiply
    122,306.37x = 168,626.54 × 79,209.71
  4. Step 4: Simplify right side
    122,306.37x = 13,356,859,331.70
  5. Step 5: Solve for x
    x = 13,356,859,331.70/122,306.37
  6. Step 6: Final answer
    x = 109,208.21

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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.