Home / 100,941.41-139,291.04-58,502.68

Finding the Fourth Proportional to 100,941.41, 139,291.04 and 58,502.68

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Solution

The fourth proportional to 100,941.41, 139,291.04 and 58,502.68 is: 80,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,941.41 : 139,291.04 = 58,502.68 : x
  2. Step 2: Convert to fraction form
    100,941.41/139,291.04 = 58,502.68/x
  3. Step 3: Cross multiply
    100,941.41x = 139,291.04 × 58,502.68
  4. Step 4: Simplify right side
    100,941.41x = 8,148,899,139.99
  5. Step 5: Solve for x
    x = 8,148,899,139.99/100,941.41
  6. Step 6: Final answer
    x = 80,729.00

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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.