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Finding the Fourth Proportional to 118,089.56, 162,960.36 and 64,375.68

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Solution

The fourth proportional to 118,089.56, 162,960.36 and 64,375.68 is: 88,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,089.56 : 162,960.36 = 64,375.68 : x
  2. Step 2: Convert to fraction form
    118,089.56/162,960.36 = 64,375.68/x
  3. Step 3: Cross multiply
    118,089.56x = 162,960.36 × 64,375.68
  4. Step 4: Simplify right side
    118,089.56x = 10,490,683,988.04
  5. Step 5: Solve for x
    x = 10,490,683,988.04/118,089.56
  6. Step 6: Final answer
    x = 88,836.68

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1.5x scale

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.