Home / 111,045.72-153,247.06-63,291.36

Finding the Fourth Proportional to 111,045.72, 153,247.06 and 63,291.36

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Solution

The fourth proportional to 111,045.72, 153,247.06 and 63,291.36 is: 87,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,045.72 : 153,247.06 = 63,291.36 : x
  2. Step 2: Convert to fraction form
    111,045.72/153,247.06 = 63,291.36/x
  3. Step 3: Cross multiply
    111,045.72x = 153,247.06 × 63,291.36
  4. Step 4: Simplify right side
    111,045.72x = 9,699,214,843.40
  5. Step 5: Solve for x
    x = 9,699,214,843.40/111,045.72
  6. Step 6: Final answer
    x = 87,344.34

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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.