Home / 104,455.12-144,145.84-56,708.04

Finding the Fourth Proportional to 104,455.12, 144,145.84 and 56,708.04

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Solution

The fourth proportional to 104,455.12, 144,145.84 and 56,708.04 is: 78,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,455.12 : 144,145.84 = 56,708.04 : x
  2. Step 2: Convert to fraction form
    104,455.12/144,145.84 = 56,708.04/x
  3. Step 3: Cross multiply
    104,455.12x = 144,145.84 × 56,708.04
  4. Step 4: Simplify right side
    104,455.12x = 8,174,228,060.55
  5. Step 5: Solve for x
    x = 8,174,228,060.55/104,455.12
  6. Step 6: Final answer
    x = 78,255.89

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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.