Home / 102,112.30-153,168.54-31,997.08

Finding the Fourth Proportional to 102,112.30, 153,168.54 and 31,997.08

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Solution

The fourth proportional to 102,112.30, 153,168.54 and 31,997.08 is: 47,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,112.30 : 153,168.54 = 31,997.08 : x
  2. Step 2: Convert to fraction form
    102,112.30/153,168.54 = 31,997.08/x
  3. Step 3: Cross multiply
    102,112.30x = 153,168.54 × 31,997.08
  4. Step 4: Simplify right side
    102,112.30x = 4,900,946,027.86
  5. Step 5: Solve for x
    x = 4,900,946,027.86/102,112.30
  6. Step 6: Final answer
    x = 47,995.65

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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.