Home / 312,128.55-468,213.62-109,700.19

Finding the Fourth Proportional to 312,128.55, 468,213.62 and 109,700.19

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Solution

The fourth proportional to 312,128.55, 468,213.62 and 109,700.19 is: 164,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,128.55 : 468,213.62 = 109,700.19 : x
  2. Step 2: Convert to fraction form
    312,128.55/468,213.62 = 109,700.19/x
  3. Step 3: Cross multiply
    312,128.55x = 468,213.62 × 109,700.19
  4. Step 4: Simplify right side
    312,128.55x = 51,363,122,526.09
  5. Step 5: Solve for x
    x = 51,363,122,526.09/312,128.55
  6. Step 6: Final answer
    x = 164,557.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.