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Finding the Fourth Proportional to 102,028.70, 153,043.05 and 73,889.30

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Solution

The fourth proportional to 102,028.70, 153,043.05 and 73,889.30 is: 110,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,028.70 : 153,043.05 = 73,889.30 : x
  2. Step 2: Convert to fraction form
    102,028.70/153,043.05 = 73,889.30/x
  3. Step 3: Cross multiply
    102,028.70x = 153,043.05 × 73,889.30
  4. Step 4: Simplify right side
    102,028.70x = 11,308,243,834.37
  5. Step 5: Solve for x
    x = 11,308,243,834.37/102,028.70
  6. Step 6: Final answer
    x = 110,833.95

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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.