Home / 103,778.48-143,221.56-59,066.48

Finding the Fourth Proportional to 103,778.48, 143,221.56 and 59,066.48

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Solution

The fourth proportional to 103,778.48, 143,221.56 and 59,066.48 is: 81,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,778.48 : 143,221.56 = 59,066.48 : x
  2. Step 2: Convert to fraction form
    103,778.48/143,221.56 = 59,066.48/x
  3. Step 3: Cross multiply
    103,778.48x = 143,221.56 × 59,066.48
  4. Step 4: Simplify right side
    103,778.48x = 8,459,593,409.31
  5. Step 5: Solve for x
    x = 8,459,593,409.31/103,778.48
  6. Step 6: Final answer
    x = 81,515.87

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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.