Home / 121,841.48-168,144.90-67,394.36

Finding the Fourth Proportional to 121,841.48, 168,144.90 and 67,394.36

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Solution

The fourth proportional to 121,841.48, 168,144.90 and 67,394.36 is: 93,006.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,841.48 : 168,144.90 = 67,394.36 : x
  2. Step 2: Convert to fraction form
    121,841.48/168,144.90 = 67,394.36/x
  3. Step 3: Cross multiply
    121,841.48x = 168,144.90 × 67,394.36
  4. Step 4: Simplify right side
    121,841.48x = 11,332,017,922.76
  5. Step 5: Solve for x
    x = 11,332,017,922.76/121,841.48
  6. Step 6: Final answer
    x = 93,006.24

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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.