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Finding the Fourth Proportional to 146,470.25, 202,128.95 and 79,402.25

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Solution

The fourth proportional to 146,470.25, 202,128.95 and 79,402.25 is: 109,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,470.25 : 202,128.95 = 79,402.25 : x
  2. Step 2: Convert to fraction form
    146,470.25/202,128.95 = 79,402.25/x
  3. Step 3: Cross multiply
    146,470.25x = 202,128.95 × 79,402.25
  4. Step 4: Simplify right side
    146,470.25x = 16,049,493,420.14
  5. Step 5: Solve for x
    x = 16,049,493,420.14/146,470.25
  6. Step 6: Final answer
    x = 109,575.11

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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.