Home / 423,067.40-634,629.90-134,856.20

Finding the Fourth Proportional to 423,067.40, 634,629.90 and 134,856.20

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Solution

The fourth proportional to 423,067.40, 634,629.90 and 134,856.20 is: 202,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,067.40 : 634,629.90 = 134,856.20 : x
  2. Step 2: Convert to fraction form
    423,067.40/634,629.90 = 134,856.20/x
  3. Step 3: Cross multiply
    423,067.40x = 634,629.90 × 134,856.20
  4. Step 4: Simplify right side
    423,067.40x = 85,583,776,720.38
  5. Step 5: Solve for x
    x = 85,583,776,720.38/423,067.40
  6. Step 6: Final answer
    x = 202,293.48

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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.