Home / 104,405.14-144,080.15-56,658.90

Finding the Fourth Proportional to 104,405.14, 144,080.15 and 56,658.90

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Solution

The fourth proportional to 104,405.14, 144,080.15 and 56,658.90 is: 78,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,405.14 : 144,080.15 = 56,658.90 : x
  2. Step 2: Convert to fraction form
    104,405.14/144,080.15 = 56,658.90/x
  3. Step 3: Cross multiply
    104,405.14x = 144,080.15 × 56,658.90
  4. Step 4: Simplify right side
    104,405.14x = 8,163,422,810.84
  5. Step 5: Solve for x
    x = 8,163,422,810.84/104,405.14
  6. Step 6: Final answer
    x = 78,189.86

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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.