Home / 161,865.42-242,820.29-55,220.74

Finding the Fourth Proportional to 161,865.42, 242,820.29 and 55,220.74

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Solution

The fourth proportional to 161,865.42, 242,820.29 and 55,220.74 is: 82,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,865.42 : 242,820.29 = 55,220.74 : x
  2. Step 2: Convert to fraction form
    161,865.42/242,820.29 = 55,220.74/x
  3. Step 3: Cross multiply
    161,865.42x = 242,820.29 × 55,220.74
  4. Step 4: Simplify right side
    161,865.42x = 13,408,716,569.81
  5. Step 5: Solve for x
    x = 13,408,716,569.81/161,865.42
  6. Step 6: Final answer
    x = 82,838.67

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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.