Home / 423,146.28-634,723.52-107,603.19

Finding the Fourth Proportional to 423,146.28, 634,723.52 and 107,603.19

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Solution

The fourth proportional to 423,146.28, 634,723.52 and 107,603.19 is: 161,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,146.28 : 634,723.52 = 107,603.19 : x
  2. Step 2: Convert to fraction form
    423,146.28/634,723.52 = 107,603.19/x
  3. Step 3: Cross multiply
    423,146.28x = 634,723.52 × 107,603.19
  4. Step 4: Simplify right side
    423,146.28x = 68,298,275,520.03
  5. Step 5: Solve for x
    x = 68,298,275,520.03/423,146.28
  6. Step 6: Final answer
    x = 161,405.83

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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.