Home / 139,898.63-193,060.10-76,236.47

Finding the Fourth Proportional to 139,898.63, 193,060.10 and 76,236.47

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Solution

The fourth proportional to 139,898.63, 193,060.10 and 76,236.47 is: 105,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,898.63 : 193,060.10 = 76,236.47 : x
  2. Step 2: Convert to fraction form
    139,898.63/193,060.10 = 76,236.47/x
  3. Step 3: Cross multiply
    139,898.63x = 193,060.10 × 76,236.47
  4. Step 4: Simplify right side
    139,898.63x = 14,718,221,195.09
  5. Step 5: Solve for x
    x = 14,718,221,195.09/139,898.63
  6. Step 6: Final answer
    x = 105,206.33

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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.