Home / 151,936.79-209,422.70-107,749.13

Finding the Fourth Proportional to 151,936.79, 209,422.70 and 107,749.13

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Solution

The fourth proportional to 151,936.79, 209,422.70 and 107,749.13 is: 148,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,936.79 : 209,422.70 = 107,749.13 : x
  2. Step 2: Convert to fraction form
    151,936.79/209,422.70 = 107,749.13/x
  3. Step 3: Cross multiply
    151,936.79x = 209,422.70 × 107,749.13
  4. Step 4: Simplify right side
    151,936.79x = 22,565,114,520.18
  5. Step 5: Solve for x
    x = 22,565,114,520.18/151,936.79
  6. Step 6: Final answer
    x = 148,516.47

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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.