Home / 103,637.36-143,016.30-58,317.92

Finding the Fourth Proportional to 103,637.36, 143,016.30 and 58,317.92

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Solution

The fourth proportional to 103,637.36, 143,016.30 and 58,317.92 is: 80,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.36 : 143,016.30 = 58,317.92 : x
  2. Step 2: Convert to fraction form
    103,637.36/143,016.30 = 58,317.92/x
  3. Step 3: Cross multiply
    103,637.36x = 143,016.30 × 58,317.92
  4. Step 4: Simplify right side
    103,637.36x = 8,340,413,142.10
  5. Step 5: Solve for x
    x = 8,340,413,142.10/103,637.36
  6. Step 6: Final answer
    x = 80,476.90

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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.