Home / 103,961.07-143,465.85-56,214.41

Finding the Fourth Proportional to 103,961.07, 143,465.85 and 56,214.41

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Solution

The fourth proportional to 103,961.07, 143,465.85 and 56,214.41 is: 77,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.07 : 143,465.85 = 56,214.41 : x
  2. Step 2: Convert to fraction form
    103,961.07/143,465.85 = 56,214.41/x
  3. Step 3: Cross multiply
    103,961.07x = 143,465.85 × 56,214.41
  4. Step 4: Simplify right side
    103,961.07x = 8,064,847,395.57
  5. Step 5: Solve for x
    x = 8,064,847,395.57/103,961.07
  6. Step 6: Final answer
    x = 77,575.65

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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.