Home / 139,918.83-209,908.13-45,154.41

Finding the Fourth Proportional to 139,918.83, 209,908.13 and 45,154.41

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Solution

The fourth proportional to 139,918.83, 209,908.13 and 45,154.41 is: 67,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,918.83 : 209,908.13 = 45,154.41 : x
  2. Step 2: Convert to fraction form
    139,918.83/209,908.13 = 45,154.41/x
  3. Step 3: Cross multiply
    139,918.83x = 209,908.13 × 45,154.41
  4. Step 4: Simplify right side
    139,918.83x = 9,478,277,538.58
  5. Step 5: Solve for x
    x = 9,478,277,538.58/139,918.83
  6. Step 6: Final answer
    x = 67,741.26

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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.