Home / 214,581.19-296,091.75-128,520.01

Finding the Fourth Proportional to 214,581.19, 296,091.75 and 128,520.01

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Solution

The fourth proportional to 214,581.19, 296,091.75 and 128,520.01 is: 177,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,581.19 : 296,091.75 = 128,520.01 : x
  2. Step 2: Convert to fraction form
    214,581.19/296,091.75 = 128,520.01/x
  3. Step 3: Cross multiply
    214,581.19x = 296,091.75 × 128,520.01
  4. Step 4: Simplify right side
    214,581.19x = 38,053,714,670.92
  5. Step 5: Solve for x
    x = 38,053,714,670.92/214,581.19
  6. Step 6: Final answer
    x = 177,339.47

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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.