Home / 104,109.86-143,671.65-56,363.21

Finding the Fourth Proportional to 104,109.86, 143,671.65 and 56,363.21

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Solution

The fourth proportional to 104,109.86, 143,671.65 and 56,363.21 is: 77,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,109.86 : 143,671.65 = 56,363.21 : x
  2. Step 2: Convert to fraction form
    104,109.86/143,671.65 = 56,363.21/x
  3. Step 3: Cross multiply
    104,109.86x = 143,671.65 × 56,363.21
  4. Step 4: Simplify right side
    104,109.86x = 8,097,794,661.64
  5. Step 5: Solve for x
    x = 8,097,794,661.64/104,109.86
  6. Step 6: Final answer
    x = 77,781.25

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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.