Home / 423,182.28-634,777.64-107,639.24

Finding the Fourth Proportional to 423,182.28, 634,777.64 and 107,639.24

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Solution

The fourth proportional to 423,182.28, 634,777.64 and 107,639.24 is: 161,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,182.28 : 634,777.64 = 107,639.24 : x
  2. Step 2: Convert to fraction form
    423,182.28/634,777.64 = 107,639.24/x
  3. Step 3: Cross multiply
    423,182.28x = 634,777.64 × 107,639.24
  4. Step 4: Simplify right side
    423,182.28x = 68,326,982,738.59
  5. Step 5: Solve for x
    x = 68,326,982,738.59/423,182.28
  6. Step 6: Final answer
    x = 161,459.93

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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.