Home / 139,968,104.20-209,952,156.30-71,943,656.20

Finding the Fourth Proportional to 139,968,104.20, 209,952,156.30 and 71,943,656.20

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Solution

The fourth proportional to 139,968,104.20, 209,952,156.30 and 71,943,656.20 is: 107,915,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,104.20 : 209,952,156.30 = 71,943,656.20 : x
  2. Step 2: Convert to fraction form
    139,968,104.20/209,952,156.30 = 71,943,656.20/x
  3. Step 3: Cross multiply
    139,968,104.20x = 209,952,156.30 × 71,943,656.20
  4. Step 4: Simplify right side
    139,968,104.20x = 15,104,725,751,295,866
  5. Step 5: Solve for x
    x = 15,104,725,751,295,866/139,968,104.20
  6. Step 6: Final answer
    x = 107,915,484.30

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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.