Home / 143,352.63-197,838.60-79,696.35

Finding the Fourth Proportional to 143,352.63, 197,838.60 and 79,696.35

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Solution

The fourth proportional to 143,352.63, 197,838.60 and 79,696.35 is: 109,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,352.63 : 197,838.60 = 79,696.35 : x
  2. Step 2: Convert to fraction form
    143,352.63/197,838.60 = 79,696.35/x
  3. Step 3: Cross multiply
    143,352.63x = 197,838.60 × 79,696.35
  4. Step 4: Simplify right side
    143,352.63x = 15,767,014,309.11
  5. Step 5: Solve for x
    x = 15,767,014,309.11/143,352.63
  6. Step 6: Final answer
    x = 109,987.62

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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.