Home / 136,333.31-188,139.54-75,902.39

Finding the Fourth Proportional to 136,333.31, 188,139.54 and 75,902.39

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Solution

The fourth proportional to 136,333.31, 188,139.54 and 75,902.39 is: 104,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,333.31 : 188,139.54 = 75,902.39 : x
  2. Step 2: Convert to fraction form
    136,333.31/188,139.54 = 75,902.39/x
  3. Step 3: Cross multiply
    136,333.31x = 188,139.54 × 75,902.39
  4. Step 4: Simplify right side
    136,333.31x = 14,280,239,798.80
  5. Step 5: Solve for x
    x = 14,280,239,798.80/136,333.31
  6. Step 6: Final answer
    x = 104,745.06

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1.5x scale

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.