Home / 102,005.22-140,723.55-63,698.27

Finding the Fourth Proportional to 102,005.22, 140,723.55 and 63,698.27

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Solution

The fourth proportional to 102,005.22, 140,723.55 and 63,698.27 is: 87,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,005.22 : 140,723.55 = 63,698.27 : x
  2. Step 2: Convert to fraction form
    102,005.22/140,723.55 = 63,698.27/x
  3. Step 3: Cross multiply
    102,005.22x = 140,723.55 × 63,698.27
  4. Step 4: Simplify right side
    102,005.22x = 8,963,845,979.64
  5. Step 5: Solve for x
    x = 8,963,845,979.64/102,005.22
  6. Step 6: Final answer
    x = 87,876.35

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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.