Home / 161,804.45-223,291.18-90,189.02

Finding the Fourth Proportional to 161,804.45, 223,291.18 and 90,189.02

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Solution

The fourth proportional to 161,804.45, 223,291.18 and 90,189.02 is: 124,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,804.45 : 223,291.18 = 90,189.02 : x
  2. Step 2: Convert to fraction form
    161,804.45/223,291.18 = 90,189.02/x
  3. Step 3: Cross multiply
    161,804.45x = 223,291.18 × 90,189.02
  4. Step 4: Simplify right side
    161,804.45x = 20,138,411,582.39
  5. Step 5: Solve for x
    x = 20,138,411,582.39/161,804.45
  6. Step 6: Final answer
    x = 124,461.42

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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.