Home / 136,159.13-203,888.78-83,408.69

Finding the Fourth Proportional to 136,159.13, 203,888.78 and 83,408.69

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Solution

The fourth proportional to 136,159.13, 203,888.78 and 83,408.69 is: 124,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,159.13 : 203,888.78 = 83,408.69 : x
  2. Step 2: Convert to fraction form
    136,159.13/203,888.78 = 83,408.69/x
  3. Step 3: Cross multiply
    136,159.13x = 203,888.78 × 83,408.69
  4. Step 4: Simplify right side
    136,159.13x = 17,006,095,628.45
  5. Step 5: Solve for x
    x = 17,006,095,628.45/136,159.13
  6. Step 6: Final answer
    x = 124,898.68

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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.