Home / 123,819.36-170,871.36-70,114.85

Finding the Fourth Proportional to 123,819.36, 170,871.36 and 70,114.85

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Solution

The fourth proportional to 123,819.36, 170,871.36 and 70,114.85 is: 96,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,819.36 : 170,871.36 = 70,114.85 : x
  2. Step 2: Convert to fraction form
    123,819.36/170,871.36 = 70,114.85/x
  3. Step 3: Cross multiply
    123,819.36x = 170,871.36 × 70,114.85
  4. Step 4: Simplify right side
    123,819.36x = 11,980,618,921.34
  5. Step 5: Solve for x
    x = 11,980,618,921.34/123,819.36
  6. Step 6: Final answer
    x = 96,758.85

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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.