Home / 104,281.09-143,908.05-56,534.43

Finding the Fourth Proportional to 104,281.09, 143,908.05 and 56,534.43

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Solution

The fourth proportional to 104,281.09, 143,908.05 and 56,534.43 is: 78,017.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,281.09 : 143,908.05 = 56,534.43 : x
  2. Step 2: Convert to fraction form
    104,281.09/143,908.05 = 56,534.43/x
  3. Step 3: Cross multiply
    104,281.09x = 143,908.05 × 56,534.43
  4. Step 4: Simplify right side
    104,281.09x = 8,135,759,579.16
  5. Step 5: Solve for x
    x = 8,135,759,579.16/104,281.09
  6. Step 6: Final answer
    x = 78,017.59

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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.