Home / 128,731.36-193,097.02-49,845.58

Finding the Fourth Proportional to 128,731.36, 193,097.02 and 49,845.58

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Solution

The fourth proportional to 128,731.36, 193,097.02 and 49,845.58 is: 74,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,731.36 : 193,097.02 = 49,845.58 : x
  2. Step 2: Convert to fraction form
    128,731.36/193,097.02 = 49,845.58/x
  3. Step 3: Cross multiply
    128,731.36x = 193,097.02 × 49,845.58
  4. Step 4: Simplify right side
    128,731.36x = 9,625,032,958.17
  5. Step 5: Solve for x
    x = 9,625,032,958.17/128,731.36
  6. Step 6: Final answer
    x = 74,768.36

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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.