Home / 143,297.94-197,758.35-79,641.66

Finding the Fourth Proportional to 143,297.94, 197,758.35 and 79,641.66

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Solution

The fourth proportional to 143,297.94, 197,758.35 and 79,641.66 is: 109,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,297.94 : 197,758.35 = 79,641.66 : x
  2. Step 2: Convert to fraction form
    143,297.94/197,758.35 = 79,641.66/x
  3. Step 3: Cross multiply
    143,297.94x = 197,758.35 × 79,641.66
  4. Step 4: Simplify right side
    143,297.94x = 15,749,803,272.86
  5. Step 5: Solve for x
    x = 15,749,803,272.86/143,297.94
  6. Step 6: Final answer
    x = 109,909.49

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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.