Home / 121,927.86-168,258.96-68,212.71

Finding the Fourth Proportional to 121,927.86, 168,258.96 and 68,212.71

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Solution

The fourth proportional to 121,927.86, 168,258.96 and 68,212.71 is: 94,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,927.86 : 168,258.96 = 68,212.71 : x
  2. Step 2: Convert to fraction form
    121,927.86/168,258.96 = 68,212.71/x
  3. Step 3: Cross multiply
    121,927.86x = 168,258.96 × 68,212.71
  4. Step 4: Simplify right side
    121,927.86x = 11,477,399,643.38
  5. Step 5: Solve for x
    x = 11,477,399,643.38/121,927.86
  6. Step 6: Final answer
    x = 94,132.71

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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.