Home / 118,286.20-162,820.62-103,152.16

Finding the Fourth Proportional to 118,286.20, 162,820.62 and 103,152.16

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Solution

The fourth proportional to 118,286.20, 162,820.62 and 103,152.16 is: 141,988.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,286.20 : 162,820.62 = 103,152.16 : x
  2. Step 2: Convert to fraction form
    118,286.20/162,820.62 = 103,152.16/x
  3. Step 3: Cross multiply
    118,286.20x = 162,820.62 × 103,152.16
  4. Step 4: Simplify right side
    118,286.20x = 16,795,298,849.07
  5. Step 5: Solve for x
    x = 16,795,298,849.07/118,286.20
  6. Step 6: Final answer
    x = 141,988.66

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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.