Home / 251,347.36-377,011.20-85,135.36

Finding the Fourth Proportional to 251,347.36, 377,011.20 and 85,135.36

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Solution

The fourth proportional to 251,347.36, 377,011.20 and 85,135.36 is: 127,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,347.36 : 377,011.20 = 85,135.36 : x
  2. Step 2: Convert to fraction form
    251,347.36/377,011.20 = 85,135.36/x
  3. Step 3: Cross multiply
    251,347.36x = 377,011.20 × 85,135.36
  4. Step 4: Simplify right side
    251,347.36x = 32,096,984,236.03
  5. Step 5: Solve for x
    x = 32,096,984,236.03/251,347.36
  6. Step 6: Final answer
    x = 127,699.71

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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.