Home / 170,733.85-255,885.45-86,515.21

Finding the Fourth Proportional to 170,733.85, 255,885.45 and 86,515.21

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Solution

The fourth proportional to 170,733.85, 255,885.45 and 86,515.21 is: 129,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,733.85 : 255,885.45 = 86,515.21 : x
  2. Step 2: Convert to fraction form
    170,733.85/255,885.45 = 86,515.21/x
  3. Step 3: Cross multiply
    170,733.85x = 255,885.45 × 86,515.21
  4. Step 4: Simplify right side
    170,733.85x = 22,137,984,887.77
  5. Step 5: Solve for x
    x = 22,137,984,887.77/170,733.85
  6. Step 6: Final answer
    x = 129,663.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.