Home / 170,795.23-256,349.10-86,613.50

Finding the Fourth Proportional to 170,795.23, 256,349.10 and 86,613.50

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Solution

The fourth proportional to 170,795.23, 256,349.10 and 86,613.50 is: 129,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,795.23 : 256,349.10 = 86,613.50 : x
  2. Step 2: Convert to fraction form
    170,795.23/256,349.10 = 86,613.50/x
  3. Step 3: Cross multiply
    170,795.23x = 256,349.10 × 86,613.50
  4. Step 4: Simplify right side
    170,795.23x = 22,203,293,738.52
  5. Step 5: Solve for x
    x = 22,203,293,738.52/170,795.23
  6. Step 6: Final answer
    x = 129,999.49

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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.