Home / 206,776.06-285,459.36-139,148.62

Finding the Fourth Proportional to 206,776.06, 285,459.36 and 139,148.62

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Solution

The fourth proportional to 206,776.06, 285,459.36 and 139,148.62 is: 192,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,776.06 : 285,459.36 = 139,148.62 : x
  2. Step 2: Convert to fraction form
    206,776.06/285,459.36 = 139,148.62/x
  3. Step 3: Cross multiply
    206,776.06x = 285,459.36 × 139,148.62
  4. Step 4: Simplify right side
    206,776.06x = 39,721,276,010.08
  5. Step 5: Solve for x
    x = 39,721,276,010.08/206,776.06
  6. Step 6: Final answer
    x = 192,098.04

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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.