Home / 103,636.86-143,015.61-58,317.42

Finding the Fourth Proportional to 103,636.86, 143,015.61 and 58,317.42

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Solution

The fourth proportional to 103,636.86, 143,015.61 and 58,317.42 is: 80,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.86 : 143,015.61 = 58,317.42 : x
  2. Step 2: Convert to fraction form
    103,636.86/143,015.61 = 58,317.42/x
  3. Step 3: Cross multiply
    103,636.86x = 143,015.61 × 58,317.42
  4. Step 4: Simplify right side
    103,636.86x = 8,340,301,394.93
  5. Step 5: Solve for x
    x = 8,340,301,394.93/103,636.86
  6. Step 6: Final answer
    x = 80,476.21

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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.