Home / 104,123.19-143,690.07-56,376.57

Finding the Fourth Proportional to 104,123.19, 143,690.07 and 56,376.57

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Solution

The fourth proportional to 104,123.19, 143,690.07 and 56,376.57 is: 77,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,123.19 : 143,690.07 = 56,376.57 : x
  2. Step 2: Convert to fraction form
    104,123.19/143,690.07 = 56,376.57/x
  3. Step 3: Cross multiply
    104,123.19x = 143,690.07 × 56,376.57
  4. Step 4: Simplify right side
    104,123.19x = 8,100,753,289.66
  5. Step 5: Solve for x
    x = 8,100,753,289.66/104,123.19
  6. Step 6: Final answer
    x = 77,799.70

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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.