Home / 318,831.32-478,134.26-94,131.66

Finding the Fourth Proportional to 318,831.32, 478,134.26 and 94,131.66

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Solution

The fourth proportional to 318,831.32, 478,134.26 and 94,131.66 is: 141,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,831.32 : 478,134.26 = 94,131.66 : x
  2. Step 2: Convert to fraction form
    318,831.32/478,134.26 = 94,131.66/x
  3. Step 3: Cross multiply
    318,831.32x = 478,134.26 × 94,131.66
  4. Step 4: Simplify right side
    318,831.32x = 45,007,571,596.67
  5. Step 5: Solve for x
    x = 45,007,571,596.67/318,831.32
  6. Step 6: Final answer
    x = 141,164.21

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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.