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Finding the Fourth Proportional to 104,259.62, 143,877.77 and 56,512.86

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Solution

The fourth proportional to 104,259.62, 143,877.77 and 56,512.86 is: 77,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,259.62 : 143,877.77 = 56,512.86 : x
  2. Step 2: Convert to fraction form
    104,259.62/143,877.77 = 56,512.86/x
  3. Step 3: Cross multiply
    104,259.62x = 143,877.77 × 56,512.86
  4. Step 4: Simplify right side
    104,259.62x = 8,130,943,662.94
  5. Step 5: Solve for x
    x = 8,130,943,662.94/104,259.62
  6. Step 6: Final answer
    x = 77,987.47

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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.