Home / 137,853,349.72-190,265,851.86-82,131,412.36

Finding the Fourth Proportional to 137,853,349.72, 190,265,851.86 and 82,131,412.36

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Solution

The fourth proportional to 137,853,349.72, 190,265,851.86 and 82,131,412.36 is: 113,358,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,853,349.72 : 190,265,851.86 = 82,131,412.36 : x
  2. Step 2: Convert to fraction form
    137,853,349.72/190,265,851.86 = 82,131,412.36/x
  3. Step 3: Cross multiply
    137,853,349.72x = 190,265,851.86 × 82,131,412.36
  4. Step 4: Simplify right side
    137,853,349.72x = 15,626,803,137,140,334
  5. Step 5: Solve for x
    x = 15,626,803,137,140,334/137,853,349.72
  6. Step 6: Final answer
    x = 113,358,167.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.