Home / 103,987.08-143,503.38-58,667.22

Finding the Fourth Proportional to 103,987.08, 143,503.38 and 58,667.22

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Solution

The fourth proportional to 103,987.08, 143,503.38 and 58,667.22 is: 80,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.08 : 143,503.38 = 58,667.22 : x
  2. Step 2: Convert to fraction form
    103,987.08/143,503.38 = 58,667.22/x
  3. Step 3: Cross multiply
    103,987.08x = 143,503.38 × 58,667.22
  4. Step 4: Simplify right side
    103,987.08x = 8,418,944,365.20
  5. Step 5: Solve for x
    x = 8,418,944,365.20/103,987.08
  6. Step 6: Final answer
    x = 80,961.45

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Double scale
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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.