Home / 186,321.47-257,128.25-101,443.19

Finding the Fourth Proportional to 186,321.47, 257,128.25 and 101,443.19

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Solution

The fourth proportional to 186,321.47, 257,128.25 and 101,443.19 is: 139,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,321.47 : 257,128.25 = 101,443.19 : x
  2. Step 2: Convert to fraction form
    186,321.47/257,128.25 = 101,443.19/x
  3. Step 3: Cross multiply
    186,321.47x = 257,128.25 × 101,443.19
  4. Step 4: Simplify right side
    186,321.47x = 26,083,908,126.26
  5. Step 5: Solve for x
    x = 26,083,908,126.26/186,321.47
  6. Step 6: Final answer
    x = 139,994.11

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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.