Home / 139,889.08-193,044.42-76,227.40

Finding the Fourth Proportional to 139,889.08, 193,044.42 and 76,227.40

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Solution

The fourth proportional to 139,889.08, 193,044.42 and 76,227.40 is: 105,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,889.08 : 193,044.42 = 76,227.40 : x
  2. Step 2: Convert to fraction form
    139,889.08/193,044.42 = 76,227.40/x
  3. Step 3: Cross multiply
    139,889.08x = 193,044.42 × 76,227.40
  4. Step 4: Simplify right side
    139,889.08x = 14,715,274,221.11
  5. Step 5: Solve for x
    x = 14,715,274,221.11/139,889.08
  6. Step 6: Final answer
    x = 105,192.44

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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.