Home / 148,429.40-222,644.10-120,435.80

Finding the Fourth Proportional to 148,429.40, 222,644.10 and 120,435.80

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Solution

The fourth proportional to 148,429.40, 222,644.10 and 120,435.80 is: 180,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,429.40 : 222,644.10 = 120,435.80 : x
  2. Step 2: Convert to fraction form
    148,429.40/222,644.10 = 120,435.80/x
  3. Step 3: Cross multiply
    148,429.40x = 222,644.10 × 120,435.80
  4. Step 4: Simplify right side
    148,429.40x = 26,814,320,298.78
  5. Step 5: Solve for x
    x = 26,814,320,298.78/148,429.40
  6. Step 6: Final answer
    x = 180,653.70

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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.