Home / 108,917.79-163,386.77-42,362.97

Finding the Fourth Proportional to 108,917.79, 163,386.77 and 42,362.97

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Solution

The fourth proportional to 108,917.79, 163,386.77 and 42,362.97 is: 63,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,917.79 : 163,386.77 = 42,362.97 : x
  2. Step 2: Convert to fraction form
    108,917.79/163,386.77 = 42,362.97/x
  3. Step 3: Cross multiply
    108,917.79x = 163,386.77 × 42,362.97
  4. Step 4: Simplify right side
    108,917.79x = 6,921,548,835.91
  5. Step 5: Solve for x
    x = 6,921,548,835.91/108,917.79
  6. Step 6: Final answer
    x = 63,548.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.