Home / 140,118.39-193,361.77-76,457.25

Finding the Fourth Proportional to 140,118.39, 193,361.77 and 76,457.25

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Solution

The fourth proportional to 140,118.39, 193,361.77 and 76,457.25 is: 105,510.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,118.39 : 193,361.77 = 76,457.25 : x
  2. Step 2: Convert to fraction form
    140,118.39/193,361.77 = 76,457.25/x
  3. Step 3: Cross multiply
    140,118.39x = 193,361.77 × 76,457.25
  4. Step 4: Simplify right side
    140,118.39x = 14,783,909,189.33
  5. Step 5: Solve for x
    x = 14,783,909,189.33/140,118.39
  6. Step 6: Final answer
    x = 105,510.13

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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.