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Finding the Fourth Proportional to 121,994.84, 168,320.84 and 70,299.23

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Solution

The fourth proportional to 121,994.84, 168,320.84 and 70,299.23 is: 96,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,994.84 : 168,320.84 = 70,299.23 : x
  2. Step 2: Convert to fraction form
    121,994.84/168,320.84 = 70,299.23/x
  3. Step 3: Cross multiply
    121,994.84x = 168,320.84 × 70,299.23
  4. Step 4: Simplify right side
    121,994.84x = 11,832,824,251.85
  5. Step 5: Solve for x
    x = 11,832,824,251.85/121,994.84
  6. Step 6: Final answer
    x = 96,994.46

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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.