Home / 142,937.40-197,244-79,272.84

Finding the Fourth Proportional to 142,937.40, 197,244 and 79,272.84

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Solution

The fourth proportional to 142,937.40, 197,244 and 79,272.84 is: 109,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,937.40 : 197,244 = 79,272.84 : x
  2. Step 2: Convert to fraction form
    142,937.40/197,244 = 79,272.84/x
  3. Step 3: Cross multiply
    142,937.40x = 197,244 × 79,272.84
  4. Step 4: Simplify right side
    142,937.40x = 15,636,092,052.96
  5. Step 5: Solve for x
    x = 15,636,092,052.96/142,937.40
  6. Step 6: Final answer
    x = 109,391.19

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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.