Home / 111,339.21-153,631.38-63,582.45

Finding the Fourth Proportional to 111,339.21, 153,631.38 and 63,582.45

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Solution

The fourth proportional to 111,339.21, 153,631.38 and 63,582.45 is: 87,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,339.21 : 153,631.38 = 63,582.45 : x
  2. Step 2: Convert to fraction form
    111,339.21/153,631.38 = 63,582.45/x
  3. Step 3: Cross multiply
    111,339.21x = 153,631.38 × 63,582.45
  4. Step 4: Simplify right side
    111,339.21x = 9,768,259,537.28
  5. Step 5: Solve for x
    x = 9,768,259,537.28/111,339.21
  6. Step 6: Final answer
    x = 87,734.23

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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.