Home / 100,875.80-139,203.27-57,853.06

Finding the Fourth Proportional to 100,875.80, 139,203.27 and 57,853.06

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Solution

The fourth proportional to 100,875.80, 139,203.27 and 57,853.06 is: 79,834.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,875.80 : 139,203.27 = 57,853.06 : x
  2. Step 2: Convert to fraction form
    100,875.80/139,203.27 = 57,853.06/x
  3. Step 3: Cross multiply
    100,875.80x = 139,203.27 × 57,853.06
  4. Step 4: Simplify right side
    100,875.80x = 8,053,335,262.57
  5. Step 5: Solve for x
    x = 8,053,335,262.57/100,875.80
  6. Step 6: Final answer
    x = 79,834.17

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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.