Home / 121,870.04-168,187.19-68,151.85

Finding the Fourth Proportional to 121,870.04, 168,187.19 and 68,151.85

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Solution

The fourth proportional to 121,870.04, 168,187.19 and 68,151.85 is: 94,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,870.04 : 168,187.19 = 68,151.85 : x
  2. Step 2: Convert to fraction form
    121,870.04/168,187.19 = 68,151.85/x
  3. Step 3: Cross multiply
    121,870.04x = 168,187.19 × 68,151.85
  4. Step 4: Simplify right side
    121,870.04x = 11,462,267,383.57
  5. Step 5: Solve for x
    x = 11,462,267,383.57/121,870.04
  6. Step 6: Final answer
    x = 94,053.20

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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.