Home / 185,918.68-256,567.10-105,361.56

Finding the Fourth Proportional to 185,918.68, 256,567.10 and 105,361.56

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Solution

The fourth proportional to 185,918.68, 256,567.10 and 105,361.56 is: 145,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,918.68 : 256,567.10 = 105,361.56 : x
  2. Step 2: Convert to fraction form
    185,918.68/256,567.10 = 105,361.56/x
  3. Step 3: Cross multiply
    185,918.68x = 256,567.10 × 105,361.56
  4. Step 4: Simplify right side
    185,918.68x = 27,032,309,900.68
  5. Step 5: Solve for x
    x = 27,032,309,900.68/185,918.68
  6. Step 6: Final answer
    x = 145,398.57

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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.