Home / 161,987.38-242,752.73-76,507.12

Finding the Fourth Proportional to 161,987.38, 242,752.73 and 76,507.12

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Solution

The fourth proportional to 161,987.38, 242,752.73 and 76,507.12 is: 114,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987.38 : 242,752.73 = 76,507.12 : x
  2. Step 2: Convert to fraction form
    161,987.38/242,752.73 = 76,507.12/x
  3. Step 3: Cross multiply
    161,987.38x = 242,752.73 × 76,507.12
  4. Step 4: Simplify right side
    161,987.38x = 18,572,312,244.44
  5. Step 5: Solve for x
    x = 18,572,312,244.44/161,987.38
  6. Step 6: Final answer
    x = 114,652.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.