Home / 127,136.18-190,628.16-42,894.48

Finding the Fourth Proportional to 127,136.18, 190,628.16 and 42,894.48

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Solution

The fourth proportional to 127,136.18, 190,628.16 and 42,894.48 is: 64,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,136.18 : 190,628.16 = 42,894.48 : x
  2. Step 2: Convert to fraction form
    127,136.18/190,628.16 = 42,894.48/x
  3. Step 3: Cross multiply
    127,136.18x = 190,628.16 × 42,894.48
  4. Step 4: Simplify right side
    127,136.18x = 8,176,895,796.56
  5. Step 5: Solve for x
    x = 8,176,895,796.56/127,136.18
  6. Step 6: Final answer
    x = 64,316.04

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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.