Home / 209,516.56-289,139.38-118,876.34

Finding the Fourth Proportional to 209,516.56, 289,139.38 and 118,876.34

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Solution

The fourth proportional to 209,516.56, 289,139.38 and 118,876.34 is: 164,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516.56 : 289,139.38 = 118,876.34 : x
  2. Step 2: Convert to fraction form
    209,516.56/289,139.38 = 118,876.34/x
  3. Step 3: Cross multiply
    209,516.56x = 289,139.38 × 118,876.34
  4. Step 4: Simplify right side
    209,516.56x = 34,371,831,244.27
  5. Step 5: Solve for x
    x = 34,371,831,244.27/209,516.56
  6. Step 6: Final answer
    x = 164,053.05

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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.