Home / 118,636.46-163,718.34-64,921.48

Finding the Fourth Proportional to 118,636.46, 163,718.34 and 64,921.48

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Solution

The fourth proportional to 118,636.46, 163,718.34 and 64,921.48 is: 89,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,636.46 : 163,718.34 = 64,921.48 : x
  2. Step 2: Convert to fraction form
    118,636.46/163,718.34 = 64,921.48/x
  3. Step 3: Cross multiply
    118,636.46x = 163,718.34 × 64,921.48
  4. Step 4: Simplify right side
    118,636.46x = 10,628,836,283.19
  5. Step 5: Solve for x
    x = 10,628,836,283.19/118,636.46
  6. Step 6: Final answer
    x = 89,591.65

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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.