Home / 161,786.02-223,271.16-90,165.40

Finding the Fourth Proportional to 161,786.02, 223,271.16 and 90,165.40

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Solution

The fourth proportional to 161,786.02, 223,271.16 and 90,165.40 is: 124,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,786.02 : 223,271.16 = 90,165.40 : x
  2. Step 2: Convert to fraction form
    161,786.02/223,271.16 = 90,165.40/x
  3. Step 3: Cross multiply
    161,786.02x = 223,271.16 × 90,165.40
  4. Step 4: Simplify right side
    161,786.02x = 20,131,333,449.86
  5. Step 5: Solve for x
    x = 20,131,333,449.86/161,786.02
  6. Step 6: Final answer
    x = 124,431.85

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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.