Home / 186,326.40-257,121.96-101,443.28

Finding the Fourth Proportional to 186,326.40, 257,121.96 and 101,443.28

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Solution

The fourth proportional to 186,326.40, 257,121.96 and 101,443.28 is: 139,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,326.40 : 257,121.96 = 101,443.28 : x
  2. Step 2: Convert to fraction form
    186,326.40/257,121.96 = 101,443.28/x
  3. Step 3: Cross multiply
    186,326.40x = 257,121.96 × 101,443.28
  4. Step 4: Simplify right side
    186,326.40x = 26,083,294,982.43
  5. Step 5: Solve for x
    x = 26,083,294,982.43/186,326.40
  6. Step 6: Final answer
    x = 139,987.11

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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.