Home / 136,809.19-205,284.84-103,519.36

Finding the Fourth Proportional to 136,809.19, 205,284.84 and 103,519.36

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Solution

The fourth proportional to 136,809.19, 205,284.84 and 103,519.36 is: 155,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,809.19 : 205,284.84 = 103,519.36 : x
  2. Step 2: Convert to fraction form
    136,809.19/205,284.84 = 103,519.36/x
  3. Step 3: Cross multiply
    136,809.19x = 205,284.84 × 103,519.36
  4. Step 4: Simplify right side
    136,809.19x = 21,250,955,254.50
  5. Step 5: Solve for x
    x = 21,250,955,254.50/136,809.19
  6. Step 6: Final answer
    x = 155,332.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.