Home / 98,763.15-148,118.30-27,681.81

Finding the Fourth Proportional to 98,763.15, 148,118.30 and 27,681.81

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Solution

The fourth proportional to 98,763.15, 148,118.30 and 27,681.81 is: 41,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,763.15 : 148,118.30 = 27,681.81 : x
  2. Step 2: Convert to fraction form
    98,763.15/148,118.30 = 27,681.81/x
  3. Step 3: Cross multiply
    98,763.15x = 148,118.30 × 27,681.81
  4. Step 4: Simplify right side
    98,763.15x = 4,100,182,638.12
  5. Step 5: Solve for x
    x = 4,100,182,638.12/98,763.15
  6. Step 6: Final answer
    x = 41,515.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.