Home / 186,321.48-257,128.26-101,443.20

Finding the Fourth Proportional to 186,321.48, 257,128.26 and 101,443.20

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Solution

The fourth proportional to 186,321.48, 257,128.26 and 101,443.20 is: 139,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,321.48 : 257,128.26 = 101,443.20 : x
  2. Step 2: Convert to fraction form
    186,321.48/257,128.26 = 101,443.20/x
  3. Step 3: Cross multiply
    186,321.48x = 257,128.26 × 101,443.20
  4. Step 4: Simplify right side
    186,321.48x = 26,083,913,504.83
  5. Step 5: Solve for x
    x = 26,083,913,504.83/186,321.48
  6. Step 6: Final answer
    x = 139,994.13

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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.