Home / 187,343.03-258,574.90-129,281.26

Finding the Fourth Proportional to 187,343.03, 258,574.90 and 129,281.26

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Solution

The fourth proportional to 187,343.03, 258,574.90 and 129,281.26 is: 178,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,343.03 : 258,574.90 = 129,281.26 : x
  2. Step 2: Convert to fraction form
    187,343.03/258,574.90 = 129,281.26/x
  3. Step 3: Cross multiply
    187,343.03x = 258,574.90 × 129,281.26
  4. Step 4: Simplify right side
    187,343.03x = 33,428,889,133.91
  5. Step 5: Solve for x
    x = 33,428,889,133.91/187,343.03
  6. Step 6: Final answer
    x = 178,436.79

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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.