Home / 143,374.36-197,867.70-86,015.83

Finding the Fourth Proportional to 143,374.36, 197,867.70 and 86,015.83

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Solution

The fourth proportional to 143,374.36, 197,867.70 and 86,015.83 is: 118,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,374.36 : 197,867.70 = 86,015.83 : x
  2. Step 2: Convert to fraction form
    143,374.36/197,867.70 = 86,015.83/x
  3. Step 3: Cross multiply
    143,374.36x = 197,867.70 × 86,015.83
  4. Step 4: Simplify right side
    143,374.36x = 17,019,754,445.69
  5. Step 5: Solve for x
    x = 17,019,754,445.69/143,374.36
  6. Step 6: Final answer
    x = 118,708.49

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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.