Home / 101,278.33-139,752.18-55,953.61

Finding the Fourth Proportional to 101,278.33, 139,752.18 and 55,953.61

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Solution

The fourth proportional to 101,278.33, 139,752.18 and 55,953.61 is: 77,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,278.33 : 139,752.18 = 55,953.61 : x
  2. Step 2: Convert to fraction form
    101,278.33/139,752.18 = 55,953.61/x
  3. Step 3: Cross multiply
    101,278.33x = 139,752.18 × 55,953.61
  4. Step 4: Simplify right side
    101,278.33x = 7,819,638,976.37
  5. Step 5: Solve for x
    x = 7,819,638,976.37/101,278.33
  6. Step 6: Final answer
    x = 77,209.40

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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.