Home / 136,437.56-188,287.14-76,009.20

Finding the Fourth Proportional to 136,437.56, 188,287.14 and 76,009.20

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Solution

The fourth proportional to 136,437.56, 188,287.14 and 76,009.20 is: 104,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.56 : 188,287.14 = 76,009.20 : x
  2. Step 2: Convert to fraction form
    136,437.56/188,287.14 = 76,009.20/x
  3. Step 3: Cross multiply
    136,437.56x = 188,287.14 × 76,009.20
  4. Step 4: Simplify right side
    136,437.56x = 14,311,554,881.69
  5. Step 5: Solve for x
    x = 14,311,554,881.69/136,437.56
  6. Step 6: Final answer
    x = 104,894.54

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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.