Home / 142,848.70-197,117.95-79,181.08

Finding the Fourth Proportional to 142,848.70, 197,117.95 and 79,181.08

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Solution

The fourth proportional to 142,848.70, 197,117.95 and 79,181.08 is: 109,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,848.70 : 197,117.95 = 79,181.08 : x
  2. Step 2: Convert to fraction form
    142,848.70/197,117.95 = 79,181.08/x
  3. Step 3: Cross multiply
    142,848.70x = 197,117.95 × 79,181.08
  4. Step 4: Simplify right side
    142,848.70x = 15,608,010,786.89
  5. Step 5: Solve for x
    x = 15,608,010,786.89/142,848.70
  6. Step 6: Final answer
    x = 109,262.54

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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.