Home / 121,618.44-167,836.18-76,298.34

Finding the Fourth Proportional to 121,618.44, 167,836.18 and 76,298.34

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Solution

The fourth proportional to 121,618.44, 167,836.18 and 76,298.34 is: 105,293.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.44 : 167,836.18 = 76,298.34 : x
  2. Step 2: Convert to fraction form
    121,618.44/167,836.18 = 76,298.34/x
  3. Step 3: Cross multiply
    121,618.44x = 167,836.18 × 76,298.34
  4. Step 4: Simplify right side
    121,618.44x = 12,805,621,925.94
  5. Step 5: Solve for x
    x = 12,805,621,925.94/121,618.44
  6. Step 6: Final answer
    x = 105,293.42

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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.