Home / 136,239.17-204,429.83-77,190.17

Finding the Fourth Proportional to 136,239.17, 204,429.83 and 77,190.17

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Solution

The fourth proportional to 136,239.17, 204,429.83 and 77,190.17 is: 115,825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,239.17 : 204,429.83 = 77,190.17 : x
  2. Step 2: Convert to fraction form
    136,239.17/204,429.83 = 77,190.17/x
  3. Step 3: Cross multiply
    136,239.17x = 204,429.83 × 77,190.17
  4. Step 4: Simplify right side
    136,239.17x = 15,779,971,922.67
  5. Step 5: Solve for x
    x = 15,779,971,922.67/136,239.17
  6. Step 6: Final answer
    x = 115,825.52

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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.