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Finding the Fourth Proportional to 103,125.80, 154,688.70 and 33,012.20

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Solution

The fourth proportional to 103,125.80, 154,688.70 and 33,012.20 is: 49,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,125.80 : 154,688.70 = 33,012.20 : x
  2. Step 2: Convert to fraction form
    103,125.80/154,688.70 = 33,012.20/x
  3. Step 3: Cross multiply
    103,125.80x = 154,688.70 × 33,012.20
  4. Step 4: Simplify right side
    103,125.80x = 5,106,614,302.14
  5. Step 5: Solve for x
    x = 5,106,614,302.14/103,125.80
  6. Step 6: Final answer
    x = 49,518.30

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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.