Home / 107,991.81-149,025.21-58,931.55

Finding the Fourth Proportional to 107,991.81, 149,025.21 and 58,931.55

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Solution

The fourth proportional to 107,991.81, 149,025.21 and 58,931.55 is: 81,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,991.81 : 149,025.21 = 58,931.55 : x
  2. Step 2: Convert to fraction form
    107,991.81/149,025.21 = 58,931.55/x
  3. Step 3: Cross multiply
    107,991.81x = 149,025.21 × 58,931.55
  4. Step 4: Simplify right side
    107,991.81x = 8,782,286,614.38
  5. Step 5: Solve for x
    x = 8,782,286,614.38/107,991.81
  6. Step 6: Final answer
    x = 81,323.64

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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.