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Finding the Fourth Proportional to 118,145.64, 163,044.06 and 64,432.92

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Solution

The fourth proportional to 118,145.64, 163,044.06 and 64,432.92 is: 88,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,145.64 : 163,044.06 = 64,432.92 : x
  2. Step 2: Convert to fraction form
    118,145.64/163,044.06 = 64,432.92/x
  3. Step 3: Cross multiply
    118,145.64x = 163,044.06 × 64,432.92
  4. Step 4: Simplify right side
    118,145.64x = 10,505,404,874.46
  5. Step 5: Solve for x
    x = 10,505,404,874.46/118,145.64
  6. Step 6: Final answer
    x = 88,919.11

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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.