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Finding the Fourth Proportional to 130,497, 180,086.04 and 70,881

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Solution

The fourth proportional to 130,497, 180,086.04 and 70,881 is: 97,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,497 : 180,086.04 = 70,881 : x
  2. Step 2: Convert to fraction form
    130,497/180,086.04 = 70,881/x
  3. Step 3: Cross multiply
    130,497x = 180,086.04 × 70,881
  4. Step 4: Simplify right side
    130,497x = 12,764,678,601.24
  5. Step 5: Solve for x
    x = 12,764,678,601.24/130,497
  6. Step 6: Final answer
    x = 97,815.88

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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.