Home / 143,271.67-197,710.99-79,607.83

Finding the Fourth Proportional to 143,271.67, 197,710.99 and 79,607.83

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Solution

The fourth proportional to 143,271.67, 197,710.99 and 79,607.83 is: 109,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271.67 : 197,710.99 = 79,607.83 : x
  2. Step 2: Convert to fraction form
    143,271.67/197,710.99 = 79,607.83/x
  3. Step 3: Cross multiply
    143,271.67x = 197,710.99 × 79,607.83
  4. Step 4: Simplify right side
    143,271.67x = 15,739,342,881.05
  5. Step 5: Solve for x
    x = 15,739,342,881.05/143,271.67
  6. Step 6: Final answer
    x = 109,856.63

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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.