Home / 136,837.92-188,943.12-104,956.32

Finding the Fourth Proportional to 136,837.92, 188,943.12 and 104,956.32

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Solution

The fourth proportional to 136,837.92, 188,943.12 and 104,956.32 is: 144,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,837.92 : 188,943.12 = 104,956.32 : x
  2. Step 2: Convert to fraction form
    136,837.92/188,943.12 = 104,956.32/x
  3. Step 3: Cross multiply
    136,837.92x = 188,943.12 × 104,956.32
  4. Step 4: Simplify right side
    136,837.92x = 19,830,774,564.52
  5. Step 5: Solve for x
    x = 19,830,774,564.52/136,837.92
  6. Step 6: Final answer
    x = 144,921.63

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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.