Home / 104,142.24-143,715.44-56,394.40

Finding the Fourth Proportional to 104,142.24, 143,715.44 and 56,394.40

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Solution

The fourth proportional to 104,142.24, 143,715.44 and 56,394.40 is: 77,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,142.24 : 143,715.44 = 56,394.40 : x
  2. Step 2: Convert to fraction form
    104,142.24/143,715.44 = 56,394.40/x
  3. Step 3: Cross multiply
    104,142.24x = 143,715.44 × 56,394.40
  4. Step 4: Simplify right side
    104,142.24x = 8,104,746,009.54
  5. Step 5: Solve for x
    x = 8,104,746,009.54/104,142.24
  6. Step 6: Final answer
    x = 77,823.81

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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.