Home / 285,641.04-428,465.40-108,100.36

Finding the Fourth Proportional to 285,641.04, 428,465.40 and 108,100.36

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Solution

The fourth proportional to 285,641.04, 428,465.40 and 108,100.36 is: 162,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,641.04 : 428,465.40 = 108,100.36 : x
  2. Step 2: Convert to fraction form
    285,641.04/428,465.40 = 108,100.36/x
  3. Step 3: Cross multiply
    285,641.04x = 428,465.40 × 108,100.36
  4. Step 4: Simplify right side
    285,641.04x = 46,317,263,987.54
  5. Step 5: Solve for x
    x = 46,317,263,987.54/285,641.04
  6. Step 6: Final answer
    x = 162,151.99

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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.