Home / 121,826.04-168,135.36-68,114.22

Finding the Fourth Proportional to 121,826.04, 168,135.36 and 68,114.22

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Solution

The fourth proportional to 121,826.04, 168,135.36 and 68,114.22 is: 94,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,826.04 : 168,135.36 = 68,114.22 : x
  2. Step 2: Convert to fraction form
    121,826.04/168,135.36 = 68,114.22/x
  3. Step 3: Cross multiply
    121,826.04x = 168,135.36 × 68,114.22
  4. Step 4: Simplify right side
    121,826.04x = 11,452,408,900.82
  5. Step 5: Solve for x
    x = 11,452,408,900.82/121,826.04
  6. Step 6: Final answer
    x = 94,006.25

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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.