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Finding the Fourth Proportional to 189,168.20, 283,622.70 and 89,376.20

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Solution

The fourth proportional to 189,168.20, 283,622.70 and 89,376.20 is: 134,003.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,168.20 : 283,622.70 = 89,376.20 : x
  2. Step 2: Convert to fraction form
    189,168.20/283,622.70 = 89,376.20/x
  3. Step 3: Cross multiply
    189,168.20x = 283,622.70 × 89,376.20
  4. Step 4: Simplify right side
    189,168.20x = 25,349,119,159.74
  5. Step 5: Solve for x
    x = 25,349,119,159.74/189,168.20
  6. Step 6: Final answer
    x = 134,003.07

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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.