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Finding the Fourth Proportional to 101,659.96, 140,284.37 and 56,335.30

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Solution

The fourth proportional to 101,659.96, 140,284.37 and 56,335.30 is: 77,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,659.96 : 140,284.37 = 56,335.30 : x
  2. Step 2: Convert to fraction form
    101,659.96/140,284.37 = 56,335.30/x
  3. Step 3: Cross multiply
    101,659.96x = 140,284.37 × 56,335.30
  4. Step 4: Simplify right side
    101,659.96x = 7,902,961,859.39
  5. Step 5: Solve for x
    x = 7,902,961,859.39/101,659.96
  6. Step 6: Final answer
    x = 77,739.18

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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.