Home / 190,664.74-285,827.14-72,419.12

Finding the Fourth Proportional to 190,664.74, 285,827.14 and 72,419.12

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Solution

The fourth proportional to 190,664.74, 285,827.14 and 72,419.12 is: 108,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,664.74 : 285,827.14 = 72,419.12 : x
  2. Step 2: Convert to fraction form
    190,664.74/285,827.14 = 72,419.12/x
  3. Step 3: Cross multiply
    190,664.74x = 285,827.14 × 72,419.12
  4. Step 4: Simplify right side
    190,664.74x = 20,699,349,950.92
  5. Step 5: Solve for x
    x = 20,699,349,950.92/190,664.74
  6. Step 6: Final answer
    x = 108,564.12

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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.