Home / 143,070.24-197,427.60-79,404.96

Finding the Fourth Proportional to 143,070.24, 197,427.60 and 79,404.96

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Solution

The fourth proportional to 143,070.24, 197,427.60 and 79,404.96 is: 109,573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,070.24 : 197,427.60 = 79,404.96 : x
  2. Step 2: Convert to fraction form
    143,070.24/197,427.60 = 79,404.96/x
  3. Step 3: Cross multiply
    143,070.24x = 197,427.60 × 79,404.96
  4. Step 4: Simplify right side
    143,070.24x = 15,676,730,680.90
  5. Step 5: Solve for x
    x = 15,676,730,680.90/143,070.24
  6. Step 6: Final answer
    x = 109,573.67

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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.