Home / 143,484.24-198,008.10-79,820.67

Finding the Fourth Proportional to 143,484.24, 198,008.10 and 79,820.67

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Solution

The fourth proportional to 143,484.24, 198,008.10 and 79,820.67 is: 110,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,484.24 : 198,008.10 = 79,820.67 : x
  2. Step 2: Convert to fraction form
    143,484.24/198,008.10 = 79,820.67/x
  3. Step 3: Cross multiply
    143,484.24x = 198,008.10 × 79,820.67
  4. Step 4: Simplify right side
    143,484.24x = 15,805,139,207.43
  5. Step 5: Solve for x
    x = 15,805,139,207.43/143,484.24
  6. Step 6: Final answer
    x = 110,152.44

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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.