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Finding the Fourth Proportional to 108,842.84, 163,201.40 and 42,205.12

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Solution

The fourth proportional to 108,842.84, 163,201.40 and 42,205.12 is: 63,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,842.84 : 163,201.40 = 42,205.12 : x
  2. Step 2: Convert to fraction form
    108,842.84/163,201.40 = 42,205.12/x
  3. Step 3: Cross multiply
    108,842.84x = 163,201.40 × 42,205.12
  4. Step 4: Simplify right side
    108,842.84x = 6,887,934,671.17
  5. Step 5: Solve for x
    x = 6,887,934,671.17/108,842.84
  6. Step 6: Final answer
    x = 63,283.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.