Home / 136,442.07-188,285.31-76,009.59

Finding the Fourth Proportional to 136,442.07, 188,285.31 and 76,009.59

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Solution

The fourth proportional to 136,442.07, 188,285.31 and 76,009.59 is: 104,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,442.07 : 188,285.31 = 76,009.59 : x
  2. Step 2: Convert to fraction form
    136,442.07/188,285.31 = 76,009.59/x
  3. Step 3: Cross multiply
    136,442.07x = 188,285.31 × 76,009.59
  4. Step 4: Simplify right side
    136,442.07x = 14,311,489,216.12
  5. Step 5: Solve for x
    x = 14,311,489,216.12/136,442.07
  6. Step 6: Final answer
    x = 104,890.59

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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.