Home / 143,192.76-197,606-79,536.48

Finding the Fourth Proportional to 143,192.76, 197,606 and 79,536.48

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Solution

The fourth proportional to 143,192.76, 197,606 and 79,536.48 is: 109,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,192.76 : 197,606 = 79,536.48 : x
  2. Step 2: Convert to fraction form
    143,192.76/197,606 = 79,536.48/x
  3. Step 3: Cross multiply
    143,192.76x = 197,606 × 79,536.48
  4. Step 4: Simplify right side
    143,192.76x = 15,716,885,666.88
  5. Step 5: Solve for x
    x = 15,716,885,666.88/143,192.76
  6. Step 6: Final answer
    x = 109,760.34

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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.