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Finding the Fourth Proportional to 118,657.53, 163,746.99 and 64,209.60

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Solution

The fourth proportional to 118,657.53, 163,746.99 and 64,209.60 is: 88,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,657.53 : 163,746.99 = 64,209.60 : x
  2. Step 2: Convert to fraction form
    118,657.53/163,746.99 = 64,209.60/x
  3. Step 3: Cross multiply
    118,657.53x = 163,746.99 × 64,209.60
  4. Step 4: Simplify right side
    118,657.53x = 10,514,128,729.10
  5. Step 5: Solve for x
    x = 10,514,128,729.10/118,657.53
  6. Step 6: Final answer
    x = 88,609.03

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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.