Home / 103,987.02-143,502.12-58,674.61

Finding the Fourth Proportional to 103,987.02, 143,502.12 and 58,674.61

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Solution

The fourth proportional to 103,987.02, 143,502.12 and 58,674.61 is: 80,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.02 : 143,502.12 = 58,674.61 : x
  2. Step 2: Convert to fraction form
    103,987.02/143,502.12 = 58,674.61/x
  3. Step 3: Cross multiply
    103,987.02x = 143,502.12 × 58,674.61
  4. Step 4: Simplify right side
    103,987.02x = 8,419,929,914.29
  5. Step 5: Solve for x
    x = 8,419,929,914.29/103,987.02
  6. Step 6: Final answer
    x = 80,970.97

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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.