Home / 108,121.70-149,208.28-60,376.80

Finding the Fourth Proportional to 108,121.70, 149,208.28 and 60,376.80

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Solution

The fourth proportional to 108,121.70, 149,208.28 and 60,376.80 is: 83,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,121.70 : 149,208.28 = 60,376.80 : x
  2. Step 2: Convert to fraction form
    108,121.70/149,208.28 = 60,376.80/x
  3. Step 3: Cross multiply
    108,121.70x = 149,208.28 × 60,376.80
  4. Step 4: Simplify right side
    108,121.70x = 9,008,718,479.90
  5. Step 5: Solve for x
    x = 9,008,718,479.90/108,121.70
  6. Step 6: Final answer
    x = 83,320.17

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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.