Home / 105,586.76-158,432.18-49,430.67

Finding the Fourth Proportional to 105,586.76, 158,432.18 and 49,430.67

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Solution

The fourth proportional to 105,586.76, 158,432.18 and 49,430.67 is: 74,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,586.76 : 158,432.18 = 49,430.67 : x
  2. Step 2: Convert to fraction form
    105,586.76/158,432.18 = 49,430.67/x
  3. Step 3: Cross multiply
    105,586.76x = 158,432.18 × 49,430.67
  4. Step 4: Simplify right side
    105,586.76x = 7,831,408,559.81
  5. Step 5: Solve for x
    x = 7,831,408,559.81/105,586.76
  6. Step 6: Final answer
    x = 74,170.37

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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.