Home / 140,314.12-193,543.38-85,840.84

Finding the Fourth Proportional to 140,314.12, 193,543.38 and 85,840.84

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Solution

The fourth proportional to 140,314.12, 193,543.38 and 85,840.84 is: 118,405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,314.12 : 193,543.38 = 85,840.84 : x
  2. Step 2: Convert to fraction form
    140,314.12/193,543.38 = 85,840.84/x
  3. Step 3: Cross multiply
    140,314.12x = 193,543.38 × 85,840.84
  4. Step 4: Simplify right side
    140,314.12x = 16,613,926,315.64
  5. Step 5: Solve for x
    x = 16,613,926,315.64/140,314.12
  6. Step 6: Final answer
    x = 118,405.23

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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.