Home / 115,370.91-159,211.89-63,688.04

Finding the Fourth Proportional to 115,370.91, 159,211.89 and 63,688.04

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Solution

The fourth proportional to 115,370.91, 159,211.89 and 63,688.04 is: 87,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,370.91 : 159,211.89 = 63,688.04 : x
  2. Step 2: Convert to fraction form
    115,370.91/159,211.89 = 63,688.04/x
  3. Step 3: Cross multiply
    115,370.91x = 159,211.89 × 63,688.04
  4. Step 4: Simplify right side
    115,370.91x = 10,139,892,422.74
  5. Step 5: Solve for x
    x = 10,139,892,422.74/115,370.91
  6. Step 6: Final answer
    x = 87,889.51

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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.