Home / 121,766.42-168,041.28-68,051.57

Finding the Fourth Proportional to 121,766.42, 168,041.28 and 68,051.57

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Solution

The fourth proportional to 121,766.42, 168,041.28 and 68,051.57 is: 93,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,766.42 : 168,041.28 = 68,051.57 : x
  2. Step 2: Convert to fraction form
    121,766.42/168,041.28 = 68,051.57/x
  3. Step 3: Cross multiply
    121,766.42x = 168,041.28 × 68,051.57
  4. Step 4: Simplify right side
    121,766.42x = 11,435,472,928.81
  5. Step 5: Solve for x
    x = 11,435,472,928.81/121,766.42
  6. Step 6: Final answer
    x = 93,913.19

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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.