Home / 215,920.03-297,970.10-120,424.27

Finding the Fourth Proportional to 215,920.03, 297,970.10 and 120,424.27

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Solution

The fourth proportional to 215,920.03, 297,970.10 and 120,424.27 is: 166,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.03 : 297,970.10 = 120,424.27 : x
  2. Step 2: Convert to fraction form
    215,920.03/297,970.10 = 120,424.27/x
  3. Step 3: Cross multiply
    215,920.03x = 297,970.10 × 120,424.27
  4. Step 4: Simplify right side
    215,920.03x = 35,882,831,774.33
  5. Step 5: Solve for x
    x = 35,882,831,774.33/215,920.03
  6. Step 6: Final answer
    x = 166,185.75

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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.