Home / 128,782.76-193,134.14-62,181.48

Finding the Fourth Proportional to 128,782.76, 193,134.14 and 62,181.48

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Solution

The fourth proportional to 128,782.76, 193,134.14 and 62,181.48 is: 93,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,782.76 : 193,134.14 = 62,181.48 : x
  2. Step 2: Convert to fraction form
    128,782.76/193,134.14 = 62,181.48/x
  3. Step 3: Cross multiply
    128,782.76x = 193,134.14 × 62,181.48
  4. Step 4: Simplify right side
    128,782.76x = 12,009,366,663.73
  5. Step 5: Solve for x
    x = 12,009,366,663.73/128,782.76
  6. Step 6: Final answer
    x = 93,252.91

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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.