Home / 161,678.78-223,120.62-90,059.98

Finding the Fourth Proportional to 161,678.78, 223,120.62 and 90,059.98

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Solution

The fourth proportional to 161,678.78, 223,120.62 and 90,059.98 is: 124,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,678.78 : 223,120.62 = 90,059.98 : x
  2. Step 2: Convert to fraction form
    161,678.78/223,120.62 = 90,059.98/x
  3. Step 3: Cross multiply
    161,678.78x = 223,120.62 × 90,059.98
  4. Step 4: Simplify right side
    161,678.78x = 20,094,238,574.79
  5. Step 5: Solve for x
    x = 20,094,238,574.79/161,678.78
  6. Step 6: Final answer
    x = 124,284.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.