Home / 100,898.07-139,239.33-58,481.22

Finding the Fourth Proportional to 100,898.07, 139,239.33 and 58,481.22

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Solution

The fourth proportional to 100,898.07, 139,239.33 and 58,481.22 is: 80,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,898.07 : 139,239.33 = 58,481.22 : x
  2. Step 2: Convert to fraction form
    100,898.07/139,239.33 = 58,481.22/x
  3. Step 3: Cross multiply
    100,898.07x = 139,239.33 × 58,481.22
  4. Step 4: Simplify right side
    100,898.07x = 8,142,885,890.38
  5. Step 5: Solve for x
    x = 8,142,885,890.38/100,898.07
  6. Step 6: Final answer
    x = 80,704.08

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1.5x scale

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.