Home / 186,297.12-257,390.64-129,960

Finding the Fourth Proportional to 186,297.12, 257,390.64 and 129,960

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Solution

The fourth proportional to 186,297.12, 257,390.64 and 129,960 is: 179,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,297.12 : 257,390.64 = 129,960 : x
  2. Step 2: Convert to fraction form
    186,297.12/257,390.64 = 129,960/x
  3. Step 3: Cross multiply
    186,297.12x = 257,390.64 × 129,960
  4. Step 4: Simplify right side
    186,297.12x = 33,450,487,574.40
  5. Step 5: Solve for x
    x = 33,450,487,574.40/186,297.12
  6. Step 6: Final answer
    x = 179,554.51

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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.