Home / 103,958.19-143,462.39-56,211.57

Finding the Fourth Proportional to 103,958.19, 143,462.39 and 56,211.57

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Solution

The fourth proportional to 103,958.19, 143,462.39 and 56,211.57 is: 77,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.19 : 143,462.39 = 56,211.57 : x
  2. Step 2: Convert to fraction form
    103,958.19/143,462.39 = 56,211.57/x
  3. Step 3: Cross multiply
    103,958.19x = 143,462.39 × 56,211.57
  4. Step 4: Simplify right side
    103,958.19x = 8,064,245,896.79
  5. Step 5: Solve for x
    x = 8,064,245,896.79/103,958.19
  6. Step 6: Final answer
    x = 77,572.01

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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.