Home / 121,899.96-168,220.74-68,184.36

Finding the Fourth Proportional to 121,899.96, 168,220.74 and 68,184.36

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Solution

The fourth proportional to 121,899.96, 168,220.74 and 68,184.36 is: 94,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,899.96 : 168,220.74 = 68,184.36 : x
  2. Step 2: Convert to fraction form
    121,899.96/168,220.74 = 68,184.36/x
  3. Step 3: Cross multiply
    121,899.96x = 168,220.74 × 68,184.36
  4. Step 4: Simplify right side
    121,899.96x = 11,470,023,495.63
  5. Step 5: Solve for x
    x = 11,470,023,495.63/121,899.96
  6. Step 6: Final answer
    x = 94,093.74

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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.