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Finding the Fourth Proportional to 147,479.64, 203,522.10 and 80,411.64

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Solution

The fourth proportional to 147,479.64, 203,522.10 and 80,411.64 is: 110,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,479.64 : 203,522.10 = 80,411.64 : x
  2. Step 2: Convert to fraction form
    147,479.64/203,522.10 = 80,411.64/x
  3. Step 3: Cross multiply
    147,479.64x = 203,522.10 × 80,411.64
  4. Step 4: Simplify right side
    147,479.64x = 16,365,545,837.24
  5. Step 5: Solve for x
    x = 16,365,545,837.24/147,479.64
  6. Step 6: Final answer
    x = 110,968.17

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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.