Home / 148,043.20-222,064.80-139,878.40

Finding the Fourth Proportional to 148,043.20, 222,064.80 and 139,878.40

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Solution

The fourth proportional to 148,043.20, 222,064.80 and 139,878.40 is: 209,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,043.20 : 222,064.80 = 139,878.40 : x
  2. Step 2: Convert to fraction form
    148,043.20/222,064.80 = 139,878.40/x
  3. Step 3: Cross multiply
    148,043.20x = 222,064.80 × 139,878.40
  4. Step 4: Simplify right side
    148,043.20x = 31,062,068,920.32
  5. Step 5: Solve for x
    x = 31,062,068,920.32/148,043.20
  6. Step 6: Final answer
    x = 209,817.60

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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.