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Finding the Fourth Proportional to 104,101.28, 143,659.12 and 56,354.28

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Solution

The fourth proportional to 104,101.28, 143,659.12 and 56,354.28 is: 77,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,101.28 : 143,659.12 = 56,354.28 : x
  2. Step 2: Convert to fraction form
    104,101.28/143,659.12 = 56,354.28/x
  3. Step 3: Cross multiply
    104,101.28x = 143,659.12 × 56,354.28
  4. Step 4: Simplify right side
    104,101.28x = 8,095,805,991.26
  5. Step 5: Solve for x
    x = 8,095,805,991.26/104,101.28
  6. Step 6: Final answer
    x = 77,768.55

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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.