Home / 121,933.66-168,294.77-74,202.39

Finding the Fourth Proportional to 121,933.66, 168,294.77 and 74,202.39

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Solution

The fourth proportional to 121,933.66, 168,294.77 and 74,202.39 is: 102,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,933.66 : 168,294.77 = 74,202.39 : x
  2. Step 2: Convert to fraction form
    121,933.66/168,294.77 = 74,202.39/x
  3. Step 3: Cross multiply
    121,933.66x = 168,294.77 × 74,202.39
  4. Step 4: Simplify right side
    121,933.66x = 12,487,874,158.50
  5. Step 5: Solve for x
    x = 12,487,874,158.50/121,933.66
  6. Step 6: Final answer
    x = 102,415.31

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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.