Home / 107,621.16-148,361.68-71,261.76

Finding the Fourth Proportional to 107,621.16, 148,361.68 and 71,261.76

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Solution

The fourth proportional to 107,621.16, 148,361.68 and 71,261.76 is: 98,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,621.16 : 148,361.68 = 71,261.76 : x
  2. Step 2: Convert to fraction form
    107,621.16/148,361.68 = 71,261.76/x
  3. Step 3: Cross multiply
    107,621.16x = 148,361.68 × 71,261.76
  4. Step 4: Simplify right side
    107,621.16x = 10,572,514,433.36
  5. Step 5: Solve for x
    x = 10,572,514,433.36/107,621.16
  6. Step 6: Final answer
    x = 98,238.25

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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.