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Finding the Fourth Proportional to 118,532.58, 163,568.34 and 64,806.90

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Solution

The fourth proportional to 118,532.58, 163,568.34 and 64,806.90 is: 89,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,532.58 : 163,568.34 = 64,806.90 : x
  2. Step 2: Convert to fraction form
    118,532.58/163,568.34 = 64,806.90/x
  3. Step 3: Cross multiply
    118,532.58x = 163,568.34 × 64,806.90
  4. Step 4: Simplify right side
    118,532.58x = 10,600,357,053.55
  5. Step 5: Solve for x
    x = 10,600,357,053.55/118,532.58
  6. Step 6: Final answer
    x = 89,429.90

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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.