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Finding the Fourth Proportional to 188,129.04, 259,623 and 107,569.68

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Solution

The fourth proportional to 188,129.04, 259,623 and 107,569.68 is: 148,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,129.04 : 259,623 = 107,569.68 : x
  2. Step 2: Convert to fraction form
    188,129.04/259,623 = 107,569.68/x
  3. Step 3: Cross multiply
    188,129.04x = 259,623 × 107,569.68
  4. Step 4: Simplify right side
    188,129.04x = 27,927,563,030.64
  5. Step 5: Solve for x
    x = 27,927,563,030.64/188,129.04
  6. Step 6: Final answer
    x = 148,448.97

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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.