Home / 155,157.68-214,141.92-91,502.48

Finding the Fourth Proportional to 155,157.68, 214,141.92 and 91,502.48

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Solution

The fourth proportional to 155,157.68, 214,141.92 and 91,502.48 is: 126,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,157.68 : 214,141.92 = 91,502.48 : x
  2. Step 2: Convert to fraction form
    155,157.68/214,141.92 = 91,502.48/x
  3. Step 3: Cross multiply
    155,157.68x = 214,141.92 × 91,502.48
  4. Step 4: Simplify right side
    155,157.68x = 19,594,516,751.96
  5. Step 5: Solve for x
    x = 19,594,516,751.96/155,157.68
  6. Step 6: Final answer
    x = 126,287.77

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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.