Home / 147,236.34-220,920.12-77,099.25

Finding the Fourth Proportional to 147,236.34, 220,920.12 and 77,099.25

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Solution

The fourth proportional to 147,236.34, 220,920.12 and 77,099.25 is: 115,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,236.34 : 220,920.12 = 77,099.25 : x
  2. Step 2: Convert to fraction form
    147,236.34/220,920.12 = 77,099.25/x
  3. Step 3: Cross multiply
    147,236.34x = 220,920.12 × 77,099.25
  4. Step 4: Simplify right side
    147,236.34x = 17,032,775,561.91
  5. Step 5: Solve for x
    x = 17,032,775,561.91/147,236.34
  6. Step 6: Final answer
    x = 115,683.23

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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.