Home / 100,923.60-139,274.46-58,506.72

Finding the Fourth Proportional to 100,923.60, 139,274.46 and 58,506.72

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Solution

The fourth proportional to 100,923.60, 139,274.46 and 58,506.72 is: 80,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.60 : 139,274.46 = 58,506.72 : x
  2. Step 2: Convert to fraction form
    100,923.60/139,274.46 = 58,506.72/x
  3. Step 3: Cross multiply
    100,923.60x = 139,274.46 × 58,506.72
  4. Step 4: Simplify right side
    100,923.60x = 8,148,491,834.37
  5. Step 5: Solve for x
    x = 8,148,491,834.37/100,923.60
  6. Step 6: Final answer
    x = 80,739.21

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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.