Home / 103,987.52-143,502.80-58,675.11

Finding the Fourth Proportional to 103,987.52, 143,502.80 and 58,675.11

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Solution

The fourth proportional to 103,987.52, 143,502.80 and 58,675.11 is: 80,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.52 : 143,502.80 = 58,675.11 : x
  2. Step 2: Convert to fraction form
    103,987.52/143,502.80 = 58,675.11/x
  3. Step 3: Cross multiply
    103,987.52x = 143,502.80 × 58,675.11
  4. Step 4: Simplify right side
    103,987.52x = 8,420,042,575.31
  5. Step 5: Solve for x
    x = 8,420,042,575.31/103,987.52
  6. Step 6: Final answer
    x = 80,971.66

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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.