Home / 165,079.63-227,812.40-89,628.13

Finding the Fourth Proportional to 165,079.63, 227,812.40 and 89,628.13

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Solution

The fourth proportional to 165,079.63, 227,812.40 and 89,628.13 is: 123,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,079.63 : 227,812.40 = 89,628.13 : x
  2. Step 2: Convert to fraction form
    165,079.63/227,812.40 = 89,628.13/x
  3. Step 3: Cross multiply
    165,079.63x = 227,812.40 × 89,628.13
  4. Step 4: Simplify right side
    165,079.63x = 20,418,399,402.81
  5. Step 5: Solve for x
    x = 20,418,399,402.81/165,079.63
  6. Step 6: Final answer
    x = 123,688.18

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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.