Home / 103,831.24-143,349.36-68,083.60

Finding the Fourth Proportional to 103,831.24, 143,349.36 and 68,083.60

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Solution

The fourth proportional to 103,831.24, 143,349.36 and 68,083.60 is: 93,996.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,831.24 : 143,349.36 = 68,083.60 : x
  2. Step 2: Convert to fraction form
    103,831.24/143,349.36 = 68,083.60/x
  3. Step 3: Cross multiply
    103,831.24x = 143,349.36 × 68,083.60
  4. Step 4: Simplify right side
    103,831.24x = 9,759,740,486.50
  5. Step 5: Solve for x
    x = 9,759,740,486.50/103,831.24
  6. Step 6: Final answer
    x = 93,996.19

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1.5x scale

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.