Home / 210,156.91-290,015.04-119,512.86

Finding the Fourth Proportional to 210,156.91, 290,015.04 and 119,512.86

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Solution

The fourth proportional to 210,156.91, 290,015.04 and 119,512.86 is: 164,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,156.91 : 290,015.04 = 119,512.86 : x
  2. Step 2: Convert to fraction form
    210,156.91/290,015.04 = 119,512.86/x
  3. Step 3: Cross multiply
    210,156.91x = 290,015.04 × 119,512.86
  4. Step 4: Simplify right side
    210,156.91x = 34,660,526,873.41
  5. Step 5: Solve for x
    x = 34,660,526,873.41/210,156.91
  6. Step 6: Final answer
    x = 164,926.90

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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.