Home / 142,797.48-197,032.14-86,211.96

Finding the Fourth Proportional to 142,797.48, 197,032.14 and 86,211.96

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Solution

The fourth proportional to 142,797.48, 197,032.14 and 86,211.96 is: 118,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,797.48 : 197,032.14 = 86,211.96 : x
  2. Step 2: Convert to fraction form
    142,797.48/197,032.14 = 86,211.96/x
  3. Step 3: Cross multiply
    142,797.48x = 197,032.14 × 86,211.96
  4. Step 4: Simplify right side
    142,797.48x = 16,986,526,972.39
  5. Step 5: Solve for x
    x = 16,986,526,972.39/142,797.48
  6. Step 6: Final answer
    x = 118,955.37

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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.