Home / 108,878.64-163,032.84-71,320.56

Finding the Fourth Proportional to 108,878.64, 163,032.84 and 71,320.56

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Solution

The fourth proportional to 108,878.64, 163,032.84 and 71,320.56 is: 106,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,878.64 : 163,032.84 = 71,320.56 : x
  2. Step 2: Convert to fraction form
    108,878.64/163,032.84 = 71,320.56/x
  3. Step 3: Cross multiply
    108,878.64x = 163,032.84 × 71,320.56
  4. Step 4: Simplify right side
    108,878.64x = 11,627,593,447.19
  5. Step 5: Solve for x
    x = 11,627,593,447.19/108,878.64
  6. Step 6: Final answer
    x = 106,794.07

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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.