Home / 254,173.48-380,994.18-85,635.57

Finding the Fourth Proportional to 254,173.48, 380,994.18 and 85,635.57

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Solution

The fourth proportional to 254,173.48, 380,994.18 and 85,635.57 is: 128,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,173.48 : 380,994.18 = 85,635.57 : x
  2. Step 2: Convert to fraction form
    254,173.48/380,994.18 = 85,635.57/x
  3. Step 3: Cross multiply
    254,173.48x = 380,994.18 × 85,635.57
  4. Step 4: Simplify right side
    254,173.48x = 32,626,653,770.98
  5. Step 5: Solve for x
    x = 32,626,653,770.98/254,173.48
  6. Step 6: Final answer
    x = 128,363.72

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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.