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Finding the Fourth Proportional to 118,325.60, 163,295.94 and 64,615.60

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Solution

The fourth proportional to 118,325.60, 163,295.94 and 64,615.60 is: 89,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,325.60 : 163,295.94 = 64,615.60 : x
  2. Step 2: Convert to fraction form
    118,325.60/163,295.94 = 64,615.60/x
  3. Step 3: Cross multiply
    118,325.60x = 163,295.94 × 64,615.60
  4. Step 4: Simplify right side
    118,325.60x = 10,551,465,140.66
  5. Step 5: Solve for x
    x = 10,551,465,140.66/118,325.60
  6. Step 6: Final answer
    x = 89,173.14

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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.