Home / 147,054.10-220,672.35-76,983.70

Finding the Fourth Proportional to 147,054.10, 220,672.35 and 76,983.70

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Solution

The fourth proportional to 147,054.10, 220,672.35 and 76,983.70 is: 115,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,054.10 : 220,672.35 = 76,983.70 : x
  2. Step 2: Convert to fraction form
    147,054.10/220,672.35 = 76,983.70/x
  3. Step 3: Cross multiply
    147,054.10x = 220,672.35 × 76,983.70
  4. Step 4: Simplify right side
    147,054.10x = 16,988,173,990.70
  5. Step 5: Solve for x
    x = 16,988,173,990.70/147,054.10
  6. Step 6: Final answer
    x = 115,523.29

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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.