Home / 131,617.73-181,632.51-74,269.21

Finding the Fourth Proportional to 131,617.73, 181,632.51 and 74,269.21

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Solution

The fourth proportional to 131,617.73, 181,632.51 and 74,269.21 is: 102,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,617.73 : 181,632.51 = 74,269.21 : x
  2. Step 2: Convert to fraction form
    131,617.73/181,632.51 = 74,269.21/x
  3. Step 3: Cross multiply
    131,617.73x = 181,632.51 × 74,269.21
  4. Step 4: Simplify right side
    131,617.73x = 13,489,703,255.06
  5. Step 5: Solve for x
    x = 13,489,703,255.06/131,617.73
  6. Step 6: Final answer
    x = 102,491.53

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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.