Home / 230,080.07-317,507.94-128,103.32

Finding the Fourth Proportional to 230,080.07, 317,507.94 and 128,103.32

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Solution

The fourth proportional to 230,080.07, 317,507.94 and 128,103.32 is: 176,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,080.07 : 317,507.94 = 128,103.32 : x
  2. Step 2: Convert to fraction form
    230,080.07/317,507.94 = 128,103.32/x
  3. Step 3: Cross multiply
    230,080.07x = 317,507.94 × 128,103.32
  4. Step 4: Simplify right side
    230,080.07x = 40,673,819,652.82
  5. Step 5: Solve for x
    x = 40,673,819,652.82/230,080.07
  6. Step 6: Final answer
    x = 176,781.16

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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.