Home / 104,405.45-144,079.62-56,658.80

Finding the Fourth Proportional to 104,405.45, 144,079.62 and 56,658.80

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Solution

The fourth proportional to 104,405.45, 144,079.62 and 56,658.80 is: 78,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,405.45 : 144,079.62 = 56,658.80 : x
  2. Step 2: Convert to fraction form
    104,405.45/144,079.62 = 56,658.80/x
  3. Step 3: Cross multiply
    104,405.45x = 144,079.62 × 56,658.80
  4. Step 4: Simplify right side
    104,405.45x = 8,163,378,733.86
  5. Step 5: Solve for x
    x = 8,163,378,733.86/104,405.45
  6. Step 6: Final answer
    x = 78,189.20

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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.