Home / 137,421.90-206,162.28-42,650.10

Finding the Fourth Proportional to 137,421.90, 206,162.28 and 42,650.10

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Solution

The fourth proportional to 137,421.90, 206,162.28 and 42,650.10 is: 63,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,421.90 : 206,162.28 = 42,650.10 : x
  2. Step 2: Convert to fraction form
    137,421.90/206,162.28 = 42,650.10/x
  3. Step 3: Cross multiply
    137,421.90x = 206,162.28 × 42,650.10
  4. Step 4: Simplify right side
    137,421.90x = 8,792,841,858.23
  5. Step 5: Solve for x
    x = 8,792,841,858.23/137,421.90
  6. Step 6: Final answer
    x = 63,984.28

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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.