Home / 209,611.06-314,136.15-102,831.46

Finding the Fourth Proportional to 209,611.06, 314,136.15 and 102,831.46

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Solution

The fourth proportional to 209,611.06, 314,136.15 and 102,831.46 is: 154,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,611.06 : 314,136.15 = 102,831.46 : x
  2. Step 2: Convert to fraction form
    209,611.06/314,136.15 = 102,831.46/x
  3. Step 3: Cross multiply
    209,611.06x = 314,136.15 × 102,831.46
  4. Step 4: Simplify right side
    209,611.06x = 32,303,078,943.28
  5. Step 5: Solve for x
    x = 32,303,078,943.28/209,611.06
  6. Step 6: Final answer
    x = 154,109.61

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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.