Home / 202,259.05-278,999.63-129,636.07

Finding the Fourth Proportional to 202,259.05, 278,999.63 and 129,636.07

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Solution

The fourth proportional to 202,259.05, 278,999.63 and 129,636.07 is: 178,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,259.05 : 278,999.63 = 129,636.07 : x
  2. Step 2: Convert to fraction form
    202,259.05/278,999.63 = 129,636.07/x
  3. Step 3: Cross multiply
    202,259.05x = 278,999.63 × 129,636.07
  4. Step 4: Simplify right side
    202,259.05x = 36,168,413,521.48
  5. Step 5: Solve for x
    x = 36,168,413,521.48/202,259.05
  6. Step 6: Final answer
    x = 178,822.23

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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.