Home / 118,587.26-163,649.89-64,139.48

Finding the Fourth Proportional to 118,587.26, 163,649.89 and 64,139.48

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Solution

The fourth proportional to 118,587.26, 163,649.89 and 64,139.48 is: 88,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,587.26 : 163,649.89 = 64,139.48 : x
  2. Step 2: Convert to fraction form
    118,587.26/163,649.89 = 64,139.48/x
  3. Step 3: Cross multiply
    118,587.26x = 163,649.89 × 64,139.48
  4. Step 4: Simplify right side
    118,587.26x = 10,496,419,750.49
  5. Step 5: Solve for x
    x = 10,496,419,750.49/118,587.26
  6. Step 6: Final answer
    x = 88,512.21

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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.