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Finding the Fourth Proportional to 144,782.08, 217,313.28 and 69,954.88

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Solution

The fourth proportional to 144,782.08, 217,313.28 and 69,954.88 is: 105,000.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,782.08 : 217,313.28 = 69,954.88 : x
  2. Step 2: Convert to fraction form
    144,782.08/217,313.28 = 69,954.88/x
  3. Step 3: Cross multiply
    144,782.08x = 217,313.28 × 69,954.88
  4. Step 4: Simplify right side
    144,782.08x = 15,202,124,424.81
  5. Step 5: Solve for x
    x = 15,202,124,424.81/144,782.08
  6. Step 6: Final answer
    x = 105,000.04

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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.