Home / 125,837.69-173,663.19-72,131.67

Finding the Fourth Proportional to 125,837.69, 173,663.19 and 72,131.67

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Solution

The fourth proportional to 125,837.69, 173,663.19 and 72,131.67 is: 99,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,837.69 : 173,663.19 = 72,131.67 : x
  2. Step 2: Convert to fraction form
    125,837.69/173,663.19 = 72,131.67/x
  3. Step 3: Cross multiply
    125,837.69x = 173,663.19 × 72,131.67
  4. Step 4: Simplify right side
    125,837.69x = 12,526,615,912.23
  5. Step 5: Solve for x
    x = 12,526,615,912.23/125,837.69
  6. Step 6: Final answer
    x = 99,545.82

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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.