Home / 161,802.45-223,288.42-90,187.01

Finding the Fourth Proportional to 161,802.45, 223,288.42 and 90,187.01

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Solution

The fourth proportional to 161,802.45, 223,288.42 and 90,187.01 is: 124,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,802.45 : 223,288.42 = 90,187.01 : x
  2. Step 2: Convert to fraction form
    161,802.45/223,288.42 = 90,187.01/x
  3. Step 3: Cross multiply
    161,802.45x = 223,288.42 × 90,187.01
  4. Step 4: Simplify right side
    161,802.45x = 20,137,715,300.18
  5. Step 5: Solve for x
    x = 20,137,715,300.18/161,802.45
  6. Step 6: Final answer
    x = 124,458.65

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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.