Home / 101,981.24-140,733.84-56,659.04

Finding the Fourth Proportional to 101,981.24, 140,733.84 and 56,659.04

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Solution

The fourth proportional to 101,981.24, 140,733.84 and 56,659.04 is: 78,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,981.24 : 140,733.84 = 56,659.04 : x
  2. Step 2: Convert to fraction form
    101,981.24/140,733.84 = 56,659.04/x
  3. Step 3: Cross multiply
    101,981.24x = 140,733.84 × 56,659.04
  4. Step 4: Simplify right side
    101,981.24x = 7,973,844,269.91
  5. Step 5: Solve for x
    x = 7,973,844,269.91/101,981.24
  6. Step 6: Final answer
    x = 78,189.32

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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.