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Finding the Fourth Proportional to 146,699.64, 202,445.70 and 79,631.64

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Solution

The fourth proportional to 146,699.64, 202,445.70 and 79,631.64 is: 109,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,699.64 : 202,445.70 = 79,631.64 : x
  2. Step 2: Convert to fraction form
    146,699.64/202,445.70 = 79,631.64/x
  3. Step 3: Cross multiply
    146,699.64x = 202,445.70 × 79,631.64
  4. Step 4: Simplify right side
    146,699.64x = 16,121,083,101.95
  5. Step 5: Solve for x
    x = 16,121,083,101.95/146,699.64
  6. Step 6: Final answer
    x = 109,891.77

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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.