Home / 104,405.12-144,079.07-56,658.47

Finding the Fourth Proportional to 104,405.12, 144,079.07 and 56,658.47

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Solution

The fourth proportional to 104,405.12, 144,079.07 and 56,658.47 is: 78,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,405.12 : 144,079.07 = 56,658.47 : x
  2. Step 2: Convert to fraction form
    104,405.12/144,079.07 = 56,658.47/x
  3. Step 3: Cross multiply
    104,405.12x = 144,079.07 × 56,658.47
  4. Step 4: Simplify right side
    104,405.12x = 8,163,299,471.98
  5. Step 5: Solve for x
    x = 8,163,299,471.98/104,405.12
  6. Step 6: Final answer
    x = 78,188.69

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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.