Home / 105,151.11-145,103.05-57,395.23

Finding the Fourth Proportional to 105,151.11, 145,103.05 and 57,395.23

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Solution

The fourth proportional to 105,151.11, 145,103.05 and 57,395.23 is: 79,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,151.11 : 145,103.05 = 57,395.23 : x
  2. Step 2: Convert to fraction form
    105,151.11/145,103.05 = 57,395.23/x
  3. Step 3: Cross multiply
    105,151.11x = 145,103.05 × 57,395.23
  4. Step 4: Simplify right side
    105,151.11x = 8,328,223,130.79
  5. Step 5: Solve for x
    x = 8,328,223,130.79/105,151.11
  6. Step 6: Final answer
    x = 79,202.43

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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.