Home / 188,564.09-260,218.45-103,681.16

Finding the Fourth Proportional to 188,564.09, 260,218.45 and 103,681.16

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Solution

The fourth proportional to 188,564.09, 260,218.45 and 103,681.16 is: 143,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,564.09 : 260,218.45 = 103,681.16 : x
  2. Step 2: Convert to fraction form
    188,564.09/260,218.45 = 103,681.16/x
  3. Step 3: Cross multiply
    188,564.09x = 260,218.45 × 103,681.16
  4. Step 4: Simplify right side
    188,564.09x = 26,979,749,189.11
  5. Step 5: Solve for x
    x = 26,979,749,189.11/188,564.09
  6. Step 6: Final answer
    x = 143,079.99

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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.