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Finding the Fourth Proportional to 108,602.64, 163,643.87 and 89,313.30

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Solution

The fourth proportional to 108,602.64, 163,643.87 and 89,313.30 is: 134,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,602.64 : 163,643.87 = 89,313.30 : x
  2. Step 2: Convert to fraction form
    108,602.64/163,643.87 = 89,313.30/x
  3. Step 3: Cross multiply
    108,602.64x = 163,643.87 × 89,313.30
  4. Step 4: Simplify right side
    108,602.64x = 14,615,573,607.90
  5. Step 5: Solve for x
    x = 14,615,573,607.90/108,602.64
  6. Step 6: Final answer
    x = 134,578.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.