Home / 118,698.15-163,805.40-64,982.28

Finding the Fourth Proportional to 118,698.15, 163,805.40 and 64,982.28

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Solution

The fourth proportional to 118,698.15, 163,805.40 and 64,982.28 is: 89,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,698.15 : 163,805.40 = 64,982.28 : x
  2. Step 2: Convert to fraction form
    118,698.15/163,805.40 = 64,982.28/x
  3. Step 3: Cross multiply
    118,698.15x = 163,805.40 × 64,982.28
  4. Step 4: Simplify right side
    118,698.15x = 10,644,448,368.31
  5. Step 5: Solve for x
    x = 10,644,448,368.31/118,698.15
  6. Step 6: Final answer
    x = 89,676.62

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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.