Home / 123,790.78-170,835.36-70,074.68

Finding the Fourth Proportional to 123,790.78, 170,835.36 and 70,074.68

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Solution

The fourth proportional to 123,790.78, 170,835.36 and 70,074.68 is: 96,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,790.78 : 170,835.36 = 70,074.68 : x
  2. Step 2: Convert to fraction form
    123,790.78/170,835.36 = 70,074.68/x
  3. Step 3: Cross multiply
    123,790.78x = 170,835.36 × 70,074.68
  4. Step 4: Simplify right side
    123,790.78x = 11,971,233,184.68
  5. Step 5: Solve for x
    x = 11,971,233,184.68/123,790.78
  6. Step 6: Final answer
    x = 96,705.37

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1.5x scale

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.