Home / 145,831.38-218,770.02-51,090.54

Finding the Fourth Proportional to 145,831.38, 218,770.02 and 51,090.54

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Solution

The fourth proportional to 145,831.38, 218,770.02 and 51,090.54 is: 76,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,831.38 : 218,770.02 = 51,090.54 : x
  2. Step 2: Convert to fraction form
    145,831.38/218,770.02 = 51,090.54/x
  3. Step 3: Cross multiply
    145,831.38x = 218,770.02 × 51,090.54
  4. Step 4: Simplify right side
    145,831.38x = 11,177,078,457.61
  5. Step 5: Solve for x
    x = 11,177,078,457.61/145,831.38
  6. Step 6: Final answer
    x = 76,643.85

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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.