Home / 131,707.10-181,736.23-79,997.28

Finding the Fourth Proportional to 131,707.10, 181,736.23 and 79,997.28

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Solution

The fourth proportional to 131,707.10, 181,736.23 and 79,997.28 is: 110,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,707.10 : 181,736.23 = 79,997.28 : x
  2. Step 2: Convert to fraction form
    131,707.10/181,736.23 = 79,997.28/x
  3. Step 3: Cross multiply
    131,707.10x = 181,736.23 × 79,997.28
  4. Step 4: Simplify right side
    131,707.10x = 14,538,404,077.45
  5. Step 5: Solve for x
    x = 14,538,404,077.45/131,707.10
  6. Step 6: Final answer
    x = 110,384.36

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1.5x scale

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.