Home / 190,633.90-285,627.93-126,547.28

Finding the Fourth Proportional to 190,633.90, 285,627.93 and 126,547.28

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Solution

The fourth proportional to 190,633.90, 285,627.93 and 126,547.28 is: 189,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.90 : 285,627.93 = 126,547.28 : x
  2. Step 2: Convert to fraction form
    190,633.90/285,627.93 = 126,547.28/x
  3. Step 3: Cross multiply
    190,633.90x = 285,627.93 × 126,547.28
  4. Step 4: Simplify right side
    190,633.90x = 36,145,438,408.60
  5. Step 5: Solve for x
    x = 36,145,438,408.60/190,633.90
  6. Step 6: Final answer
    x = 189,606.56

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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.