Home / 190,890.05-286,064.27-140,575.55

Finding the Fourth Proportional to 190,890.05, 286,064.27 and 140,575.55

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Solution

The fourth proportional to 190,890.05, 286,064.27 and 140,575.55 is: 210,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,890.05 : 286,064.27 = 140,575.55 : x
  2. Step 2: Convert to fraction form
    190,890.05/286,064.27 = 140,575.55/x
  3. Step 3: Cross multiply
    190,890.05x = 286,064.27 × 140,575.55
  4. Step 4: Simplify right side
    190,890.05x = 40,213,642,090.60
  5. Step 5: Solve for x
    x = 40,213,642,090.60/190,890.05
  6. Step 6: Final answer
    x = 210,663.90

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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.