Home / 230,131.91-317,573.18-128,161.67

Finding the Fourth Proportional to 230,131.91, 317,573.18 and 128,161.67

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Solution

The fourth proportional to 230,131.91, 317,573.18 and 128,161.67 is: 176,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,131.91 : 317,573.18 = 128,161.67 : x
  2. Step 2: Convert to fraction form
    230,131.91/317,573.18 = 128,161.67/x
  3. Step 3: Cross multiply
    230,131.91x = 317,573.18 × 128,161.67
  4. Step 4: Simplify right side
    230,131.91x = 40,700,707,264.30
  5. Step 5: Solve for x
    x = 40,700,707,264.30/230,131.91
  6. Step 6: Final answer
    x = 176,858.17

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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.