Home / 148,145.10-221,889.60-121,901.10

Finding the Fourth Proportional to 148,145.10, 221,889.60 and 121,901.10

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Solution

The fourth proportional to 148,145.10, 221,889.60 and 121,901.10 is: 182,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,145.10 : 221,889.60 = 121,901.10 : x
  2. Step 2: Convert to fraction form
    148,145.10/221,889.60 = 121,901.10/x
  3. Step 3: Cross multiply
    148,145.10x = 221,889.60 × 121,901.10
  4. Step 4: Simplify right side
    148,145.10x = 27,048,586,318.56
  5. Step 5: Solve for x
    x = 27,048,586,318.56/148,145.10
  6. Step 6: Final answer
    x = 182,581.71

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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.