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Finding the Fourth Proportional to 101,139.30, 151,745.40 and 97,494.30

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Solution

The fourth proportional to 101,139.30, 151,745.40 and 97,494.30 is: 146,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,139.30 : 151,745.40 = 97,494.30 : x
  2. Step 2: Convert to fraction form
    101,139.30/151,745.40 = 97,494.30/x
  3. Step 3: Cross multiply
    101,139.30x = 151,745.40 × 97,494.30
  4. Step 4: Simplify right side
    101,139.30x = 14,794,311,551.22
  5. Step 5: Solve for x
    x = 14,794,311,551.22/101,139.30
  6. Step 6: Final answer
    x = 146,276.59

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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.