Home / 139,918.30-209,815.53-40,055.74

Finding the Fourth Proportional to 139,918.30, 209,815.53 and 40,055.74

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Solution

The fourth proportional to 139,918.30, 209,815.53 and 40,055.74 is: 60,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,918.30 : 209,815.53 = 40,055.74 : x
  2. Step 2: Convert to fraction form
    139,918.30/209,815.53 = 40,055.74/x
  3. Step 3: Cross multiply
    139,918.30x = 209,815.53 × 40,055.74
  4. Step 4: Simplify right side
    139,918.30x = 8,404,316,317.64
  5. Step 5: Solve for x
    x = 8,404,316,317.64/139,918.30
  6. Step 6: Final answer
    x = 60,065.88

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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.