Home / 136,731.14-188,689.02-75,477.38

Finding the Fourth Proportional to 136,731.14, 188,689.02 and 75,477.38

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Solution

The fourth proportional to 136,731.14, 188,689.02 and 75,477.38 is: 104,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,731.14 : 188,689.02 = 75,477.38 : x
  2. Step 2: Convert to fraction form
    136,731.14/188,689.02 = 75,477.38/x
  3. Step 3: Cross multiply
    136,731.14x = 188,689.02 × 75,477.38
  4. Step 4: Simplify right side
    136,731.14x = 14,241,752,864.37
  5. Step 5: Solve for x
    x = 14,241,752,864.37/136,731.14
  6. Step 6: Final answer
    x = 104,158.81

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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.