Home / 127,256.90-190,885.35-103,637.30

Finding the Fourth Proportional to 127,256.90, 190,885.35 and 103,637.30

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Solution

The fourth proportional to 127,256.90, 190,885.35 and 103,637.30 is: 155,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,256.90 : 190,885.35 = 103,637.30 : x
  2. Step 2: Convert to fraction form
    127,256.90/190,885.35 = 103,637.30/x
  3. Step 3: Cross multiply
    127,256.90x = 190,885.35 × 103,637.30
  4. Step 4: Simplify right side
    127,256.90x = 19,782,842,283.56
  5. Step 5: Solve for x
    x = 19,782,842,283.56/127,256.90
  6. Step 6: Final answer
    x = 155,455.95

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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.