Home / 186,828.86-257,756.46-143,821.50

Finding the Fourth Proportional to 186,828.86, 257,756.46 and 143,821.50

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Solution

The fourth proportional to 186,828.86, 257,756.46 and 143,821.50 is: 198,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,828.86 : 257,756.46 = 143,821.50 : x
  2. Step 2: Convert to fraction form
    186,828.86/257,756.46 = 143,821.50/x
  3. Step 3: Cross multiply
    186,828.86x = 257,756.46 × 143,821.50
  4. Step 4: Simplify right side
    186,828.86x = 37,070,920,711.89
  5. Step 5: Solve for x
    x = 37,070,920,711.89/186,828.86
  6. Step 6: Final answer
    x = 198,421.81

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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.