Home / 128,770.02-193,138.62-49,830.24

Finding the Fourth Proportional to 128,770.02, 193,138.62 and 49,830.24

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Solution

The fourth proportional to 128,770.02, 193,138.62 and 49,830.24 is: 74,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,770.02 : 193,138.62 = 49,830.24 : x
  2. Step 2: Convert to fraction form
    128,770.02/193,138.62 = 49,830.24/x
  3. Step 3: Cross multiply
    128,770.02x = 193,138.62 × 49,830.24
  4. Step 4: Simplify right side
    128,770.02x = 9,624,143,787.87
  5. Step 5: Solve for x
    x = 9,624,143,787.87/128,770.02
  6. Step 6: Final answer
    x = 74,739.01

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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.