Home / 187,426.74-258,690.42-129,365.01

Finding the Fourth Proportional to 187,426.74, 258,690.42 and 129,365.01

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Solution

The fourth proportional to 187,426.74, 258,690.42 and 129,365.01 is: 178,552.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,426.74 : 258,690.42 = 129,365.01 : x
  2. Step 2: Convert to fraction form
    187,426.74/258,690.42 = 129,365.01/x
  3. Step 3: Cross multiply
    187,426.74x = 258,690.42 × 129,365.01
  4. Step 4: Simplify right side
    187,426.74x = 33,465,488,770.20
  5. Step 5: Solve for x
    x = 33,465,488,770.20/187,426.74
  6. Step 6: Final answer
    x = 178,552.37

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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.