Home / 131,653.25-181,681.23-71,223.94

Finding the Fourth Proportional to 131,653.25, 181,681.23 and 71,223.94

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Solution

The fourth proportional to 131,653.25, 181,681.23 and 71,223.94 is: 98,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.25 : 181,681.23 = 71,223.94 : x
  2. Step 2: Convert to fraction form
    131,653.25/181,681.23 = 71,223.94/x
  3. Step 3: Cross multiply
    131,653.25x = 181,681.23 × 71,223.94
  4. Step 4: Simplify right side
    131,653.25x = 12,940,051,760.12
  5. Step 5: Solve for x
    x = 12,940,051,760.12/131,653.25
  6. Step 6: Final answer
    x = 98,288.89

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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.