Home / 112,982.72-155,914.08-62,680.64

Finding the Fourth Proportional to 112,982.72, 155,914.08 and 62,680.64

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Solution

The fourth proportional to 112,982.72, 155,914.08 and 62,680.64 is: 86,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,982.72 : 155,914.08 = 62,680.64 : x
  2. Step 2: Convert to fraction form
    112,982.72/155,914.08 = 62,680.64/x
  3. Step 3: Cross multiply
    112,982.72x = 155,914.08 × 62,680.64
  4. Step 4: Simplify right side
    112,982.72x = 9,772,794,319.41
  5. Step 5: Solve for x
    x = 9,772,794,319.41/112,982.72
  6. Step 6: Final answer
    x = 86,498.13

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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.