Home / 143,024.37-197,343.95-79,348.65

Finding the Fourth Proportional to 143,024.37, 197,343.95 and 79,348.65

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Solution

The fourth proportional to 143,024.37, 197,343.95 and 79,348.65 is: 109,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,024.37 : 197,343.95 = 79,348.65 : x
  2. Step 2: Convert to fraction form
    143,024.37/197,343.95 = 79,348.65/x
  3. Step 3: Cross multiply
    143,024.37x = 197,343.95 × 79,348.65
  4. Step 4: Simplify right side
    143,024.37x = 15,658,975,621.42
  5. Step 5: Solve for x
    x = 15,658,975,621.42/143,024.37
  6. Step 6: Final answer
    x = 109,484.67

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1.5x scale

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.