Home / 100,828.14-139,127.67-60,535.50

Finding the Fourth Proportional to 100,828.14, 139,127.67 and 60,535.50

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Solution

The fourth proportional to 100,828.14, 139,127.67 and 60,535.50 is: 83,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,828.14 : 139,127.67 = 60,535.50 : x
  2. Step 2: Convert to fraction form
    100,828.14/139,127.67 = 60,535.50/x
  3. Step 3: Cross multiply
    100,828.14x = 139,127.67 × 60,535.50
  4. Step 4: Simplify right side
    100,828.14x = 8,422,163,067.29
  5. Step 5: Solve for x
    x = 8,422,163,067.29/100,828.14
  6. Step 6: Final answer
    x = 83,529.89

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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.