Home / 148,384.44-222,799-128,455.40

Finding the Fourth Proportional to 148,384.44, 222,799 and 128,455.40

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Solution

The fourth proportional to 148,384.44, 222,799 and 128,455.40 is: 192,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,384.44 : 222,799 = 128,455.40 : x
  2. Step 2: Convert to fraction form
    148,384.44/222,799 = 128,455.40/x
  3. Step 3: Cross multiply
    148,384.44x = 222,799 × 128,455.40
  4. Step 4: Simplify right side
    148,384.44x = 28,619,734,664.60
  5. Step 5: Solve for x
    x = 28,619,734,664.60/148,384.44
  6. Step 6: Final answer
    x = 192,875.58

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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.