Home / 161,638.74-242,458.20-43,307.10

Finding the Fourth Proportional to 161,638.74, 242,458.20 and 43,307.10

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Solution

The fourth proportional to 161,638.74, 242,458.20 and 43,307.10 is: 64,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,638.74 : 242,458.20 = 43,307.10 : x
  2. Step 2: Convert to fraction form
    161,638.74/242,458.20 = 43,307.10/x
  3. Step 3: Cross multiply
    161,638.74x = 242,458.20 × 43,307.10
  4. Step 4: Simplify right side
    161,638.74x = 10,500,161,513.22
  5. Step 5: Solve for x
    x = 10,500,161,513.22/161,638.74
  6. Step 6: Final answer
    x = 64,960.67

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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.