Home / 131,457.24-181,400.70-74,857.56

Finding the Fourth Proportional to 131,457.24, 181,400.70 and 74,857.56

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Solution

The fourth proportional to 131,457.24, 181,400.70 and 74,857.56 is: 103,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,457.24 : 181,400.70 = 74,857.56 : x
  2. Step 2: Convert to fraction form
    131,457.24/181,400.70 = 74,857.56/x
  3. Step 3: Cross multiply
    131,457.24x = 181,400.70 × 74,857.56
  4. Step 4: Simplify right side
    131,457.24x = 13,579,213,784.29
  5. Step 5: Solve for x
    x = 13,579,213,784.29/131,457.24
  6. Step 6: Final answer
    x = 103,297.57

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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.