Home / 157,664.31-217,577.40-86,045.85

Finding the Fourth Proportional to 157,664.31, 217,577.40 and 86,045.85

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Solution

The fourth proportional to 157,664.31, 217,577.40 and 86,045.85 is: 118,743.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,664.31 : 217,577.40 = 86,045.85 : x
  2. Step 2: Convert to fraction form
    157,664.31/217,577.40 = 86,045.85/x
  3. Step 3: Cross multiply
    157,664.31x = 217,577.40 × 86,045.85
  4. Step 4: Simplify right side
    157,664.31x = 18,721,632,323.79
  5. Step 5: Solve for x
    x = 18,721,632,323.79/157,664.31
  6. Step 6: Final answer
    x = 118,743.63

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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.