Home / 106,623.20-160,172.40-89,127.20

Finding the Fourth Proportional to 106,623.20, 160,172.40 and 89,127.20

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Solution

The fourth proportional to 106,623.20, 160,172.40 and 89,127.20 is: 133,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,623.20 : 160,172.40 = 89,127.20 : x
  2. Step 2: Convert to fraction form
    106,623.20/160,172.40 = 89,127.20/x
  3. Step 3: Cross multiply
    106,623.20x = 160,172.40 × 89,127.20
  4. Step 4: Simplify right side
    106,623.20x = 14,275,717,529.28
  5. Step 5: Solve for x
    x = 14,275,717,529.28/106,623.20
  6. Step 6: Final answer
    x = 133,889.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.