Home / 103,701.08-143,118.24-63,441.66

Finding the Fourth Proportional to 103,701.08, 143,118.24 and 63,441.66

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Solution

The fourth proportional to 103,701.08, 143,118.24 and 63,441.66 is: 87,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.08 : 143,118.24 = 63,441.66 : x
  2. Step 2: Convert to fraction form
    103,701.08/143,118.24 = 63,441.66/x
  3. Step 3: Cross multiply
    103,701.08x = 143,118.24 × 63,441.66
  4. Step 4: Simplify right side
    103,701.08x = 9,079,658,721.88
  5. Step 5: Solve for x
    x = 9,079,658,721.88/103,701.08
  6. Step 6: Final answer
    x = 87,556.07

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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.