Home / 152,889.68-229,389.56-68,643.28

Finding the Fourth Proportional to 152,889.68, 229,389.56 and 68,643.28

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Solution

The fourth proportional to 152,889.68, 229,389.56 and 68,643.28 is: 102,989.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,889.68 : 229,389.56 = 68,643.28 : x
  2. Step 2: Convert to fraction form
    152,889.68/229,389.56 = 68,643.28/x
  3. Step 3: Cross multiply
    152,889.68x = 229,389.56 × 68,643.28
  4. Step 4: Simplify right side
    152,889.68x = 15,746,051,796.16
  5. Step 5: Solve for x
    x = 15,746,051,796.16/152,889.68
  6. Step 6: Final answer
    x = 102,989.63

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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.