Home / 110,987.30-153,172.48-63,256.03

Finding the Fourth Proportional to 110,987.30, 153,172.48 and 63,256.03

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Solution

The fourth proportional to 110,987.30, 153,172.48 and 63,256.03 is: 87,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,987.30 : 153,172.48 = 63,256.03 : x
  2. Step 2: Convert to fraction form
    110,987.30/153,172.48 = 63,256.03/x
  3. Step 3: Cross multiply
    110,987.30x = 153,172.48 × 63,256.03
  4. Step 4: Simplify right side
    110,987.30x = 9,689,082,990.05
  5. Step 5: Solve for x
    x = 9,689,082,990.05/110,987.30
  6. Step 6: Final answer
    x = 87,299.02

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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.