Home / 131,586.13-181,581.91-74,223.82

Finding the Fourth Proportional to 131,586.13, 181,581.91 and 74,223.82

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Solution

The fourth proportional to 131,586.13, 181,581.91 and 74,223.82 is: 102,424.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,586.13 : 181,581.91 = 74,223.82 : x
  2. Step 2: Convert to fraction form
    131,586.13/181,581.91 = 74,223.82/x
  3. Step 3: Cross multiply
    131,586.13x = 181,581.91 × 74,223.82
  4. Step 4: Simplify right side
    131,586.13x = 13,477,703,003.10
  5. Step 5: Solve for x
    x = 13,477,703,003.10/131,586.13
  6. Step 6: Final answer
    x = 102,424.95

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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.