Home / 166,111.09-249,157.92-47,777.78

Finding the Fourth Proportional to 166,111.09, 249,157.92 and 47,777.78

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Solution

The fourth proportional to 166,111.09, 249,157.92 and 47,777.78 is: 71,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,111.09 : 249,157.92 = 47,777.78 : x
  2. Step 2: Convert to fraction form
    166,111.09/249,157.92 = 47,777.78/x
  3. Step 3: Cross multiply
    166,111.09x = 249,157.92 × 47,777.78
  4. Step 4: Simplify right side
    166,111.09x = 11,904,213,089.08
  5. Step 5: Solve for x
    x = 11,904,213,089.08/166,111.09
  6. Step 6: Final answer
    x = 71,664.17

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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.