Home / 118,741.36-163,878.24-68,440.72

Finding the Fourth Proportional to 118,741.36, 163,878.24 and 68,440.72

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Solution

The fourth proportional to 118,741.36, 163,878.24 and 68,440.72 is: 94,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,741.36 : 163,878.24 = 68,440.72 : x
  2. Step 2: Convert to fraction form
    118,741.36/163,878.24 = 68,440.72/x
  3. Step 3: Cross multiply
    118,741.36x = 163,878.24 × 68,440.72
  4. Step 4: Simplify right side
    118,741.36x = 11,215,944,737.93
  5. Step 5: Solve for x
    x = 11,215,944,737.93/118,741.36
  6. Step 6: Final answer
    x = 94,456.93

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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.