Home / 101,266.20-139,747.68-55,946.70

Finding the Fourth Proportional to 101,266.20, 139,747.68 and 55,946.70

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Solution

The fourth proportional to 101,266.20, 139,747.68 and 55,946.70 is: 77,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.20 : 139,747.68 = 55,946.70 : x
  2. Step 2: Convert to fraction form
    101,266.20/139,747.68 = 55,946.70/x
  3. Step 3: Cross multiply
    101,266.20x = 139,747.68 × 55,946.70
  4. Step 4: Simplify right side
    101,266.20x = 7,818,421,528.66
  5. Step 5: Solve for x
    x = 7,818,421,528.66/101,266.20
  6. Step 6: Final answer
    x = 77,206.63

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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.