Home / 161,642.49-223,073.54-90,022.51

Finding the Fourth Proportional to 161,642.49, 223,073.54 and 90,022.51

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Solution

The fourth proportional to 161,642.49, 223,073.54 and 90,022.51 is: 124,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,642.49 : 223,073.54 = 90,022.51 : x
  2. Step 2: Convert to fraction form
    161,642.49/223,073.54 = 90,022.51/x
  3. Step 3: Cross multiply
    161,642.49x = 223,073.54 × 90,022.51
  4. Step 4: Simplify right side
    161,642.49x = 20,081,639,403.29
  5. Step 5: Solve for x
    x = 20,081,639,403.29/161,642.49
  6. Step 6: Final answer
    x = 124,234.91

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1.5x scale

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.