Home / 115,502.79-159,386.36-67,100.43

Finding the Fourth Proportional to 115,502.79, 159,386.36 and 67,100.43

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Solution

The fourth proportional to 115,502.79, 159,386.36 and 67,100.43 is: 92,594.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.79 : 159,386.36 = 67,100.43 : x
  2. Step 2: Convert to fraction form
    115,502.79/159,386.36 = 67,100.43/x
  3. Step 3: Cross multiply
    115,502.79x = 159,386.36 × 67,100.43
  4. Step 4: Simplify right side
    115,502.79x = 10,694,892,956.63
  5. Step 5: Solve for x
    x = 10,694,892,956.63/115,502.79
  6. Step 6: Final answer
    x = 92,594.24

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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.