Home / 107,742.81-161,560.14-62,778.70

Finding the Fourth Proportional to 107,742.81, 161,560.14 and 62,778.70

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Solution

The fourth proportional to 107,742.81, 161,560.14 and 62,778.70 is: 94,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,742.81 : 161,560.14 = 62,778.70 : x
  2. Step 2: Convert to fraction form
    107,742.81/161,560.14 = 62,778.70/x
  3. Step 3: Cross multiply
    107,742.81x = 161,560.14 × 62,778.70
  4. Step 4: Simplify right side
    107,742.81x = 10,142,535,561.02
  5. Step 5: Solve for x
    x = 10,142,535,561.02/107,742.81
  6. Step 6: Final answer
    x = 94,136.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.