Home / 230,137.07-317,586.59-128,160.29

Finding the Fourth Proportional to 230,137.07, 317,586.59 and 128,160.29

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Solution

The fourth proportional to 230,137.07, 317,586.59 and 128,160.29 is: 176,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,137.07 : 317,586.59 = 128,160.29 : x
  2. Step 2: Convert to fraction form
    230,137.07/317,586.59 = 128,160.29/x
  3. Step 3: Cross multiply
    230,137.07x = 317,586.59 × 128,160.29
  4. Step 4: Simplify right side
    230,137.07x = 40,701,990,108.28
  5. Step 5: Solve for x
    x = 40,701,990,108.28/230,137.07
  6. Step 6: Final answer
    x = 176,859.78

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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.