Home / 122,084.49-168,417.16-79,051.62

Finding the Fourth Proportional to 122,084.49, 168,417.16 and 79,051.62

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Solution

The fourth proportional to 122,084.49, 168,417.16 and 79,051.62 is: 109,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,084.49 : 168,417.16 = 79,051.62 : x
  2. Step 2: Convert to fraction form
    122,084.49/168,417.16 = 79,051.62/x
  3. Step 3: Cross multiply
    122,084.49x = 168,417.16 × 79,051.62
  4. Step 4: Simplify right side
    122,084.49x = 13,313,649,333.80
  5. Step 5: Solve for x
    x = 13,313,649,333.80/122,084.49
  6. Step 6: Final answer
    x = 109,052.75

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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.