Home / 147,236.72-220,920.68-77,099.63

Finding the Fourth Proportional to 147,236.72, 220,920.68 and 77,099.63

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Solution

The fourth proportional to 147,236.72, 220,920.68 and 77,099.63 is: 115,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,236.72 : 220,920.68 = 77,099.63 : x
  2. Step 2: Convert to fraction form
    147,236.72/220,920.68 = 77,099.63/x
  3. Step 3: Cross multiply
    147,236.72x = 220,920.68 × 77,099.63
  4. Step 4: Simplify right side
    147,236.72x = 17,032,901,775.49
  5. Step 5: Solve for x
    x = 17,032,901,775.49/147,236.72
  6. Step 6: Final answer
    x = 115,683.79

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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.