Home / 257,669.51-386,499.69-105,833.70

Finding the Fourth Proportional to 257,669.51, 386,499.69 and 105,833.70

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Solution

The fourth proportional to 257,669.51, 386,499.69 and 105,833.70 is: 158,748.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,669.51 : 386,499.69 = 105,833.70 : x
  2. Step 2: Convert to fraction form
    257,669.51/386,499.69 = 105,833.70/x
  3. Step 3: Cross multiply
    257,669.51x = 386,499.69 × 105,833.70
  4. Step 4: Simplify right side
    257,669.51x = 40,904,692,241.55
  5. Step 5: Solve for x
    x = 40,904,692,241.55/257,669.51
  6. Step 6: Final answer
    x = 158,748.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.