Home / 121,488.12-167,653.80-67,039.02

Finding the Fourth Proportional to 121,488.12, 167,653.80 and 67,039.02

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Solution

The fourth proportional to 121,488.12, 167,653.80 and 67,039.02 is: 92,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,488.12 : 167,653.80 = 67,039.02 : x
  2. Step 2: Convert to fraction form
    121,488.12/167,653.80 = 67,039.02/x
  3. Step 3: Cross multiply
    121,488.12x = 167,653.80 × 67,039.02
  4. Step 4: Simplify right side
    121,488.12x = 11,239,346,451.28
  5. Step 5: Solve for x
    x = 11,239,346,451.28/121,488.12
  6. Step 6: Final answer
    x = 92,513.95

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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.