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Finding the Fourth Proportional to 146,078.76, 201,588.70 and 79,010.76

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Solution

The fourth proportional to 146,078.76, 201,588.70 and 79,010.76 is: 109,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,078.76 : 201,588.70 = 79,010.76 : x
  2. Step 2: Convert to fraction form
    146,078.76/201,588.70 = 79,010.76/x
  3. Step 3: Cross multiply
    146,078.76x = 201,588.70 × 79,010.76
  4. Step 4: Simplify right side
    146,078.76x = 15,927,676,394.41
  5. Step 5: Solve for x
    x = 15,927,676,394.41/146,078.76
  6. Step 6: Final answer
    x = 109,034.85

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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.