Home / 133,083.18-199,458.66-66,542.34

Finding the Fourth Proportional to 133,083.18, 199,458.66 and 66,542.34

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Solution

The fourth proportional to 133,083.18, 199,458.66 and 66,542.34 is: 99,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,083.18 : 199,458.66 = 66,542.34 : x
  2. Step 2: Convert to fraction form
    133,083.18/199,458.66 = 66,542.34/x
  3. Step 3: Cross multiply
    133,083.18x = 199,458.66 × 66,542.34
  4. Step 4: Simplify right side
    133,083.18x = 13,272,445,969.66
  5. Step 5: Solve for x
    x = 13,272,445,969.66/133,083.18
  6. Step 6: Final answer
    x = 99,730.45

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1.5x scale

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.