Home / 111,529.54-153,908.85-61,228.18

Finding the Fourth Proportional to 111,529.54, 153,908.85 and 61,228.18

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Solution

The fourth proportional to 111,529.54, 153,908.85 and 61,228.18 is: 84,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,529.54 : 153,908.85 = 61,228.18 : x
  2. Step 2: Convert to fraction form
    111,529.54/153,908.85 = 61,228.18/x
  3. Step 3: Cross multiply
    111,529.54x = 153,908.85 × 61,228.18
  4. Step 4: Simplify right side
    111,529.54x = 9,423,558,771.39
  5. Step 5: Solve for x
    x = 9,423,558,771.39/111,529.54
  6. Step 6: Final answer
    x = 84,493.84

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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.