Home / 112,913.01-155,819.70-65,166.36

Finding the Fourth Proportional to 112,913.01, 155,819.70 and 65,166.36

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Solution

The fourth proportional to 112,913.01, 155,819.70 and 65,166.36 is: 89,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.01 : 155,819.70 = 65,166.36 : x
  2. Step 2: Convert to fraction form
    112,913.01/155,819.70 = 65,166.36/x
  3. Step 3: Cross multiply
    112,913.01x = 155,819.70 × 65,166.36
  4. Step 4: Simplify right side
    112,913.01x = 10,154,202,665.29
  5. Step 5: Solve for x
    x = 10,154,202,665.29/112,913.01
  6. Step 6: Final answer
    x = 89,929.43

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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.