Home / 101,184.45-139,635.03-55,861.62

Finding the Fourth Proportional to 101,184.45, 139,635.03 and 55,861.62

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Solution

The fourth proportional to 101,184.45, 139,635.03 and 55,861.62 is: 77,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,184.45 : 139,635.03 = 55,861.62 : x
  2. Step 2: Convert to fraction form
    101,184.45/139,635.03 = 55,861.62/x
  3. Step 3: Cross multiply
    101,184.45x = 139,635.03 × 55,861.62
  4. Step 4: Simplify right side
    101,184.45x = 7,800,238,984.55
  5. Step 5: Solve for x
    x = 7,800,238,984.55/101,184.45
  6. Step 6: Final answer
    x = 77,089.31

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1.5x scale

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.