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Finding the Fourth Proportional to 112,698, 155,528.10 and 62,397

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Solution

The fourth proportional to 112,698, 155,528.10 and 62,397 is: 86,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698 : 155,528.10 = 62,397 : x
  2. Step 2: Convert to fraction form
    112,698/155,528.10 = 62,397/x
  3. Step 3: Cross multiply
    112,698x = 155,528.10 × 62,397
  4. Step 4: Simplify right side
    112,698x = 9,704,486,855.70
  5. Step 5: Solve for x
    x = 9,704,486,855.70/112,698
  6. Step 6: Final answer
    x = 86,110.55

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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.