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Finding the Fourth Proportional to 146,078.25, 201,588 and 79,010.25

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Solution

The fourth proportional to 146,078.25, 201,588 and 79,010.25 is: 109,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,078.25 : 201,588 = 79,010.25 : x
  2. Step 2: Convert to fraction form
    146,078.25/201,588 = 79,010.25/x
  3. Step 3: Cross multiply
    146,078.25x = 201,588 × 79,010.25
  4. Step 4: Simplify right side
    146,078.25x = 15,927,518,277
  5. Step 5: Solve for x
    x = 15,927,518,277/146,078.25
  6. Step 6: Final answer
    x = 109,034.15

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1.5x scale

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.