Home / 103,670.19-143,064.72-58,348.50

Finding the Fourth Proportional to 103,670.19, 143,064.72 and 58,348.50

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Solution

The fourth proportional to 103,670.19, 143,064.72 and 58,348.50 is: 80,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.19 : 143,064.72 = 58,348.50 : x
  2. Step 2: Convert to fraction form
    103,670.19/143,064.72 = 58,348.50/x
  3. Step 3: Cross multiply
    103,670.19x = 143,064.72 × 58,348.50
  4. Step 4: Simplify right side
    103,670.19x = 8,347,611,814.92
  5. Step 5: Solve for x
    x = 8,347,611,814.92/103,670.19
  6. Step 6: Final answer
    x = 80,520.85

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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.