Home / 118,387.82-163,373.13-64,671.45

Finding the Fourth Proportional to 118,387.82, 163,373.13 and 64,671.45

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Solution

The fourth proportional to 118,387.82, 163,373.13 and 64,671.45 is: 89,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,387.82 : 163,373.13 = 64,671.45 : x
  2. Step 2: Convert to fraction form
    118,387.82/163,373.13 = 64,671.45/x
  3. Step 3: Cross multiply
    118,387.82x = 163,373.13 × 64,671.45
  4. Step 4: Simplify right side
    118,387.82x = 10,565,577,820.79
  5. Step 5: Solve for x
    x = 10,565,577,820.79/118,387.82
  6. Step 6: Final answer
    x = 89,245.48

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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.