Home / 128,844.78-193,285.40-49,966.98

Finding the Fourth Proportional to 128,844.78, 193,285.40 and 49,966.98

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Solution

The fourth proportional to 128,844.78, 193,285.40 and 49,966.98 is: 74,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,844.78 : 193,285.40 = 49,966.98 : x
  2. Step 2: Convert to fraction form
    128,844.78/193,285.40 = 49,966.98/x
  3. Step 3: Cross multiply
    128,844.78x = 193,285.40 × 49,966.98
  4. Step 4: Simplify right side
    128,844.78x = 9,657,887,466.26
  5. Step 5: Solve for x
    x = 9,657,887,466.26/128,844.78
  6. Step 6: Final answer
    x = 74,957.54

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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.