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Finding the Fourth Proportional to 111,621, 154,037.04 and 61,323.24

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Solution

The fourth proportional to 111,621, 154,037.04 and 61,323.24 is: 84,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,621 : 154,037.04 = 61,323.24 : x
  2. Step 2: Convert to fraction form
    111,621/154,037.04 = 61,323.24/x
  3. Step 3: Cross multiply
    111,621x = 154,037.04 × 61,323.24
  4. Step 4: Simplify right side
    111,621x = 9,446,050,372.81
  5. Step 5: Solve for x
    x = 9,446,050,372.81/111,621
  6. Step 6: Final answer
    x = 84,626.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.