Home / 253,539.05-380,353.82-85,114.22

Finding the Fourth Proportional to 253,539.05, 380,353.82 and 85,114.22

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Solution

The fourth proportional to 253,539.05, 380,353.82 and 85,114.22 is: 127,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,539.05 : 380,353.82 = 85,114.22 : x
  2. Step 2: Convert to fraction form
    253,539.05/380,353.82 = 85,114.22/x
  3. Step 3: Cross multiply
    253,539.05x = 380,353.82 × 85,114.22
  4. Step 4: Simplify right side
    253,539.05x = 32,373,516,385.98
  5. Step 5: Solve for x
    x = 32,373,516,385.98/253,539.05
  6. Step 6: Final answer
    x = 127,686.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.