Home / 131,610.09-181,606.55-74,250.32

Finding the Fourth Proportional to 131,610.09, 181,606.55 and 74,250.32

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Solution

The fourth proportional to 131,610.09, 181,606.55 and 74,250.32 is: 102,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,610.09 : 181,606.55 = 74,250.32 : x
  2. Step 2: Convert to fraction form
    131,610.09/181,606.55 = 74,250.32/x
  3. Step 3: Cross multiply
    131,610.09x = 181,606.55 × 74,250.32
  4. Step 4: Simplify right side
    131,610.09x = 13,484,343,172.31
  5. Step 5: Solve for x
    x = 13,484,343,172.31/131,610.09
  6. Step 6: Final answer
    x = 102,456.76

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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.