Home / 111,141.18-153,389.43-63,383.58

Finding the Fourth Proportional to 111,141.18, 153,389.43 and 63,383.58

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Solution

The fourth proportional to 111,141.18, 153,389.43 and 63,383.58 is: 87,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,141.18 : 153,389.43 = 63,383.58 : x
  2. Step 2: Convert to fraction form
    111,141.18/153,389.43 = 63,383.58/x
  3. Step 3: Cross multiply
    111,141.18x = 153,389.43 × 63,383.58
  4. Step 4: Simplify right side
    111,141.18x = 9,722,371,207.56
  5. Step 5: Solve for x
    x = 9,722,371,207.56/111,141.18
  6. Step 6: Final answer
    x = 87,477.67

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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.