Home / 181,626.25-272,436.64-81,715.89

Finding the Fourth Proportional to 181,626.25, 272,436.64 and 81,715.89

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Solution

The fourth proportional to 181,626.25, 272,436.64 and 81,715.89 is: 122,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,626.25 : 272,436.64 = 81,715.89 : x
  2. Step 2: Convert to fraction form
    181,626.25/272,436.64 = 81,715.89/x
  3. Step 3: Cross multiply
    181,626.25x = 272,436.64 × 81,715.89
  4. Step 4: Simplify right side
    181,626.25x = 22,262,402,301.92
  5. Step 5: Solve for x
    x = 22,262,402,301.92/181,626.25
  6. Step 6: Final answer
    x = 122,572.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.