Home / 118,440.39-163,447.35-64,725.72

Finding the Fourth Proportional to 118,440.39, 163,447.35 and 64,725.72

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Solution

The fourth proportional to 118,440.39, 163,447.35 and 64,725.72 is: 89,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,440.39 : 163,447.35 = 64,725.72 : x
  2. Step 2: Convert to fraction form
    118,440.39/163,447.35 = 64,725.72/x
  3. Step 3: Cross multiply
    118,440.39x = 163,447.35 × 64,725.72
  4. Step 4: Simplify right side
    118,440.39x = 10,579,247,410.84
  5. Step 5: Solve for x
    x = 10,579,247,410.84/118,440.39
  6. Step 6: Final answer
    x = 89,321.28

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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.