Home / 104,259.30-143,877.78-56,512.50

Finding the Fourth Proportional to 104,259.30, 143,877.78 and 56,512.50

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Solution

The fourth proportional to 104,259.30, 143,877.78 and 56,512.50 is: 77,987.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,259.30 : 143,877.78 = 56,512.50 : x
  2. Step 2: Convert to fraction form
    104,259.30/143,877.78 = 56,512.50/x
  3. Step 3: Cross multiply
    104,259.30x = 143,877.78 × 56,512.50
  4. Step 4: Simplify right side
    104,259.30x = 8,130,893,042.25
  5. Step 5: Solve for x
    x = 8,130,893,042.25/104,259.30
  6. Step 6: Final answer
    x = 77,987.22

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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.