Home / 161,631.83-223,035.96-90,018.52

Finding the Fourth Proportional to 161,631.83, 223,035.96 and 90,018.52

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Solution

The fourth proportional to 161,631.83, 223,035.96 and 90,018.52 is: 124,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,631.83 : 223,035.96 = 90,018.52 : x
  2. Step 2: Convert to fraction form
    161,631.83/223,035.96 = 90,018.52/x
  3. Step 3: Cross multiply
    161,631.83x = 223,035.96 × 90,018.52
  4. Step 4: Simplify right side
    161,631.83x = 20,077,366,805.96
  5. Step 5: Solve for x
    x = 20,077,366,805.96/161,631.83
  6. Step 6: Final answer
    x = 124,216.66

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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.