Home / 143,285.82-197,741.16-79,624.14

Finding the Fourth Proportional to 143,285.82, 197,741.16 and 79,624.14

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Solution

The fourth proportional to 143,285.82, 197,741.16 and 79,624.14 is: 109,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,285.82 : 197,741.16 = 79,624.14 : x
  2. Step 2: Convert to fraction form
    143,285.82/197,741.16 = 79,624.14/x
  3. Step 3: Cross multiply
    143,285.82x = 197,741.16 × 79,624.14
  4. Step 4: Simplify right side
    143,285.82x = 15,744,969,807.60
  5. Step 5: Solve for x
    x = 15,744,969,807.60/143,285.82
  6. Step 6: Final answer
    x = 109,885.05

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1.5x scale

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.