Home / 143,004.45-197,346.18-79,342.10

Finding the Fourth Proportional to 143,004.45, 197,346.18 and 79,342.10

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Solution

The fourth proportional to 143,004.45, 197,346.18 and 79,342.10 is: 109,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,004.45 : 197,346.18 = 79,342.10 : x
  2. Step 2: Convert to fraction form
    143,004.45/197,346.18 = 79,342.10/x
  3. Step 3: Cross multiply
    143,004.45x = 197,346.18 × 79,342.10
  4. Step 4: Simplify right side
    143,004.45x = 15,657,860,348.18
  5. Step 5: Solve for x
    x = 15,657,860,348.18/143,004.45
  6. Step 6: Final answer
    x = 109,492.12

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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.