Home / 102,883.90-154,340.64-31,812.08

Finding the Fourth Proportional to 102,883.90, 154,340.64 and 31,812.08

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Solution

The fourth proportional to 102,883.90, 154,340.64 and 31,812.08 is: 47,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,883.90 : 154,340.64 = 31,812.08 : x
  2. Step 2: Convert to fraction form
    102,883.90/154,340.64 = 31,812.08/x
  3. Step 3: Cross multiply
    102,883.90x = 154,340.64 × 31,812.08
  4. Step 4: Simplify right side
    102,883.90x = 4,909,896,786.93
  5. Step 5: Solve for x
    x = 4,909,896,786.93/102,883.90
  6. Step 6: Final answer
    x = 47,722.69

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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.