Home / 161,642.07-223,065.45-90,022.95

Finding the Fourth Proportional to 161,642.07, 223,065.45 and 90,022.95

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Solution

The fourth proportional to 161,642.07, 223,065.45 and 90,022.95 is: 124,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,642.07 : 223,065.45 = 90,022.95 : x
  2. Step 2: Convert to fraction form
    161,642.07/223,065.45 = 90,022.95/x
  3. Step 3: Cross multiply
    161,642.07x = 223,065.45 × 90,022.95
  4. Step 4: Simplify right side
    161,642.07x = 20,081,009,852.08
  5. Step 5: Solve for x
    x = 20,081,009,852.08/161,642.07
  6. Step 6: Final answer
    x = 124,231.33

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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.