Home / 186,330.31-257,135.72-101,447.37

Finding the Fourth Proportional to 186,330.31, 257,135.72 and 101,447.37

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Solution

The fourth proportional to 186,330.31, 257,135.72 and 101,447.37 is: 139,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,330.31 : 257,135.72 = 101,447.37 : x
  2. Step 2: Convert to fraction form
    186,330.31/257,135.72 = 101,447.37/x
  3. Step 3: Cross multiply
    186,330.31x = 257,135.72 × 101,447.37
  4. Step 4: Simplify right side
    186,330.31x = 26,085,742,019.82
  5. Step 5: Solve for x
    x = 26,085,742,019.82/186,330.31
  6. Step 6: Final answer
    x = 139,997.31

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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.