Home / 131,348.24-181,215.60-74,745.44

Finding the Fourth Proportional to 131,348.24, 181,215.60 and 74,745.44

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Solution

The fourth proportional to 131,348.24, 181,215.60 and 74,745.44 is: 103,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,348.24 : 181,215.60 = 74,745.44 : x
  2. Step 2: Convert to fraction form
    131,348.24/181,215.60 = 74,745.44/x
  3. Step 3: Cross multiply
    131,348.24x = 181,215.60 × 74,745.44
  4. Step 4: Simplify right side
    131,348.24x = 13,545,039,756.86
  5. Step 5: Solve for x
    x = 13,545,039,756.86/131,348.24
  6. Step 6: Final answer
    x = 103,123.12

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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.