Home / 143,544.96-197,886.75-100,971.36

Finding the Fourth Proportional to 143,544.96, 197,886.75 and 100,971.36

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Solution

The fourth proportional to 143,544.96, 197,886.75 and 100,971.36 is: 139,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544.96 : 197,886.75 = 100,971.36 : x
  2. Step 2: Convert to fraction form
    143,544.96/197,886.75 = 100,971.36/x
  3. Step 3: Cross multiply
    143,544.96x = 197,886.75 × 100,971.36
  4. Step 4: Simplify right side
    143,544.96x = 19,980,894,273.48
  5. Step 5: Solve for x
    x = 19,980,894,273.48/143,544.96
  6. Step 6: Final answer
    x = 139,196.07

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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.