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Finding the Fourth Proportional to 130,066, 179,491.08 and 70,450

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Solution

The fourth proportional to 130,066, 179,491.08 and 70,450 is: 97,221

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,066 : 179,491.08 = 70,450 : x
  2. Step 2: Convert to fraction form
    130,066/179,491.08 = 70,450/x
  3. Step 3: Cross multiply
    130,066x = 179,491.08 × 70,450
  4. Step 4: Simplify right side
    130,066x = 12,645,146,586
  5. Step 5: Solve for x
    x = 12,645,146,586/130,066
  6. Step 6: Final answer
    x = 97,221

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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.