Home / 186,310.18-257,064.33-105,719.50

Finding the Fourth Proportional to 186,310.18, 257,064.33 and 105,719.50

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Solution

The fourth proportional to 186,310.18, 257,064.33 and 105,719.50 is: 145,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,310.18 : 257,064.33 = 105,719.50 : x
  2. Step 2: Convert to fraction form
    186,310.18/257,064.33 = 105,719.50/x
  3. Step 3: Cross multiply
    186,310.18x = 257,064.33 × 105,719.50
  4. Step 4: Simplify right side
    186,310.18x = 27,176,712,435.44
  5. Step 5: Solve for x
    x = 27,176,712,435.44/186,310.18
  6. Step 6: Final answer
    x = 145,868.10

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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.