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Finding the Fourth Proportional to 109,707.64, 151,393.48 and 64,995.64

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Solution

The fourth proportional to 109,707.64, 151,393.48 and 64,995.64 is: 89,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,707.64 : 151,393.48 = 64,995.64 : x
  2. Step 2: Convert to fraction form
    109,707.64/151,393.48 = 64,995.64/x
  3. Step 3: Cross multiply
    109,707.64x = 151,393.48 × 64,995.64
  4. Step 4: Simplify right side
    109,707.64x = 9,839,916,124.43
  5. Step 5: Solve for x
    x = 9,839,916,124.43/109,707.64
  6. Step 6: Final answer
    x = 89,692.17

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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.