Home / 118,104.15-162,985.49-64,390.06

Finding the Fourth Proportional to 118,104.15, 162,985.49 and 64,390.06

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Solution

The fourth proportional to 118,104.15, 162,985.49 and 64,390.06 is: 88,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,104.15 : 162,985.49 = 64,390.06 : x
  2. Step 2: Convert to fraction form
    118,104.15/162,985.49 = 64,390.06/x
  3. Step 3: Cross multiply
    118,104.15x = 162,985.49 × 64,390.06
  4. Step 4: Simplify right side
    118,104.15x = 10,494,646,242.97
  5. Step 5: Solve for x
    x = 10,494,646,242.97/118,104.15
  6. Step 6: Final answer
    x = 88,859.25

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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.