Home / 104,290.37-143,921.70-56,543.84

Finding the Fourth Proportional to 104,290.37, 143,921.70 and 56,543.84

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Solution

The fourth proportional to 104,290.37, 143,921.70 and 56,543.84 is: 78,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,290.37 : 143,921.70 = 56,543.84 : x
  2. Step 2: Convert to fraction form
    104,290.37/143,921.70 = 56,543.84/x
  3. Step 3: Cross multiply
    104,290.37x = 143,921.70 × 56,543.84
  4. Step 4: Simplify right side
    104,290.37x = 8,137,884,857.72
  5. Step 5: Solve for x
    x = 8,137,884,857.72/104,290.37
  6. Step 6: Final answer
    x = 78,031.03

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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.