Home / 143,005.74-197,376.64-82,586.22

Finding the Fourth Proportional to 143,005.74, 197,376.64 and 82,586.22

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Solution

The fourth proportional to 143,005.74, 197,376.64 and 82,586.22 is: 113,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,005.74 : 197,376.64 = 82,586.22 : x
  2. Step 2: Convert to fraction form
    143,005.74/197,376.64 = 82,586.22/x
  3. Step 3: Cross multiply
    143,005.74x = 197,376.64 × 82,586.22
  4. Step 4: Simplify right side
    143,005.74x = 16,300,590,613.90
  5. Step 5: Solve for x
    x = 16,300,590,613.90/143,005.74
  6. Step 6: Final answer
    x = 113,985.57

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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.