Home / 109,884.28-164,960.98-72,475.64

Finding the Fourth Proportional to 109,884.28, 164,960.98 and 72,475.64

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Solution

The fourth proportional to 109,884.28, 164,960.98 and 72,475.64 is: 108,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,884.28 : 164,960.98 = 72,475.64 : x
  2. Step 2: Convert to fraction form
    109,884.28/164,960.98 = 72,475.64/x
  3. Step 3: Cross multiply
    109,884.28x = 164,960.98 × 72,475.64
  4. Step 4: Simplify right side
    109,884.28x = 11,955,652,600.53
  5. Step 5: Solve for x
    x = 11,955,652,600.53/109,884.28
  6. Step 6: Final answer
    x = 108,802.21

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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.