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Finding the Fourth Proportional to 147,907.60, 221,861.40 and 69,029.80

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Solution

The fourth proportional to 147,907.60, 221,861.40 and 69,029.80 is: 103,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,907.60 : 221,861.40 = 69,029.80 : x
  2. Step 2: Convert to fraction form
    147,907.60/221,861.40 = 69,029.80/x
  3. Step 3: Cross multiply
    147,907.60x = 221,861.40 × 69,029.80
  4. Step 4: Simplify right side
    147,907.60x = 15,315,048,069.72
  5. Step 5: Solve for x
    x = 15,315,048,069.72/147,907.60
  6. Step 6: Final answer
    x = 103,544.70

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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.