Home / 186,315.50-257,116-101,433.18

Finding the Fourth Proportional to 186,315.50, 257,116 and 101,433.18

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Solution

The fourth proportional to 186,315.50, 257,116 and 101,433.18 is: 139,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,315.50 : 257,116 = 101,433.18 : x
  2. Step 2: Convert to fraction form
    186,315.50/257,116 = 101,433.18/x
  3. Step 3: Cross multiply
    186,315.50x = 257,116 × 101,433.18
  4. Step 4: Simplify right side
    186,315.50x = 26,080,093,508.88
  5. Step 5: Solve for x
    x = 26,080,093,508.88/186,315.50
  6. Step 6: Final answer
    x = 139,978.12

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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.