Home / 118,490.66-163,516.74-64,775.72

Finding the Fourth Proportional to 118,490.66, 163,516.74 and 64,775.72

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Solution

The fourth proportional to 118,490.66, 163,516.74 and 64,775.72 is: 89,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,490.66 : 163,516.74 = 64,775.72 : x
  2. Step 2: Convert to fraction form
    118,490.66/163,516.74 = 64,775.72/x
  3. Step 3: Cross multiply
    118,490.66x = 163,516.74 × 64,775.72
  4. Step 4: Simplify right side
    118,490.66x = 10,591,914,565.55
  5. Step 5: Solve for x
    x = 10,591,914,565.55/118,490.66
  6. Step 6: Final answer
    x = 89,390.29

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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.