Home / 99,608.40-149,412.28-31,225.16

Finding the Fourth Proportional to 99,608.40, 149,412.28 and 31,225.16

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Solution

The fourth proportional to 99,608.40, 149,412.28 and 31,225.16 is: 46,837.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.40 : 149,412.28 = 31,225.16 : x
  2. Step 2: Convert to fraction form
    99,608.40/149,412.28 = 31,225.16/x
  3. Step 3: Cross multiply
    99,608.40x = 149,412.28 × 31,225.16
  4. Step 4: Simplify right side
    99,608.40x = 4,665,422,348.96
  5. Step 5: Solve for x
    x = 4,665,422,348.96/99,608.40
  6. Step 6: Final answer
    x = 46,837.64

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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.