Home / 423,066.14-634,601.40-142,585.82

Finding the Fourth Proportional to 423,066.14, 634,601.40 and 142,585.82

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Solution

The fourth proportional to 423,066.14, 634,601.40 and 142,585.82 is: 213,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,066.14 : 634,601.40 = 142,585.82 : x
  2. Step 2: Convert to fraction form
    423,066.14/634,601.40 = 142,585.82/x
  3. Step 3: Cross multiply
    423,066.14x = 634,601.40 × 142,585.82
  4. Step 4: Simplify right side
    423,066.14x = 90,485,160,992.15
  5. Step 5: Solve for x
    x = 90,485,160,992.15/423,066.14
  6. Step 6: Final answer
    x = 213,879.47

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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.