Home / 172,866.48-238,537.08-105,785.52

Finding the Fourth Proportional to 172,866.48, 238,537.08 and 105,785.52

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Solution

The fourth proportional to 172,866.48, 238,537.08 and 105,785.52 is: 145,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,866.48 : 238,537.08 = 105,785.52 : x
  2. Step 2: Convert to fraction form
    172,866.48/238,537.08 = 105,785.52/x
  3. Step 3: Cross multiply
    172,866.48x = 238,537.08 × 105,785.52
  4. Step 4: Simplify right side
    172,866.48x = 25,233,769,047.08
  5. Step 5: Solve for x
    x = 25,233,769,047.08/172,866.48
  6. Step 6: Final answer
    x = 145,972.60

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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.