Home / 117,686.91-162,411.09-63,975.54

Finding the Fourth Proportional to 117,686.91, 162,411.09 and 63,975.54

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Solution

The fourth proportional to 117,686.91, 162,411.09 and 63,975.54 is: 88,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,686.91 : 162,411.09 = 63,975.54 : x
  2. Step 2: Convert to fraction form
    117,686.91/162,411.09 = 63,975.54/x
  3. Step 3: Cross multiply
    117,686.91x = 162,411.09 × 63,975.54
  4. Step 4: Simplify right side
    117,686.91x = 10,390,337,184.74
  5. Step 5: Solve for x
    x = 10,390,337,184.74/117,686.91
  6. Step 6: Final answer
    x = 88,287.96

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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.