Home / 189,244.95-261,157.24-103,203.70

Finding the Fourth Proportional to 189,244.95, 261,157.24 and 103,203.70

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Solution

The fourth proportional to 189,244.95, 261,157.24 and 103,203.70 is: 142,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,244.95 : 261,157.24 = 103,203.70 : x
  2. Step 2: Convert to fraction form
    189,244.95/261,157.24 = 103,203.70/x
  3. Step 3: Cross multiply
    189,244.95x = 261,157.24 × 103,203.70
  4. Step 4: Simplify right side
    189,244.95x = 26,952,393,449.79
  5. Step 5: Solve for x
    x = 26,952,393,449.79/189,244.95
  6. Step 6: Final answer
    x = 142,420.67

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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.