Home / 105,831.09-158,795.25-45,877.86

Finding the Fourth Proportional to 105,831.09, 158,795.25 and 45,877.86

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Solution

The fourth proportional to 105,831.09, 158,795.25 and 45,877.86 is: 68,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,831.09 : 158,795.25 = 45,877.86 : x
  2. Step 2: Convert to fraction form
    105,831.09/158,795.25 = 45,877.86/x
  3. Step 3: Cross multiply
    105,831.09x = 158,795.25 × 45,877.86
  4. Step 4: Simplify right side
    105,831.09x = 7,285,186,248.17
  5. Step 5: Solve for x
    x = 7,285,186,248.17/105,831.09
  6. Step 6: Final answer
    x = 68,837.86

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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.