Home / 102,064.28-140,840.73-56,739.51

Finding the Fourth Proportional to 102,064.28, 140,840.73 and 56,739.51

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Solution

The fourth proportional to 102,064.28, 140,840.73 and 56,739.51 is: 78,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,064.28 : 140,840.73 = 56,739.51 : x
  2. Step 2: Convert to fraction form
    102,064.28/140,840.73 = 56,739.51/x
  3. Step 3: Cross multiply
    102,064.28x = 140,840.73 × 56,739.51
  4. Step 4: Simplify right side
    102,064.28x = 7,991,234,008.24
  5. Step 5: Solve for x
    x = 7,991,234,008.24/102,064.28
  6. Step 6: Final answer
    x = 78,296.09

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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.