Home / 127,132.20-190,784.70-70,972.20

Finding the Fourth Proportional to 127,132.20, 190,784.70 and 70,972.20

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Solution

The fourth proportional to 127,132.20, 190,784.70 and 70,972.20 is: 106,506.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,132.20 : 190,784.70 = 70,972.20 : x
  2. Step 2: Convert to fraction form
    127,132.20/190,784.70 = 70,972.20/x
  3. Step 3: Cross multiply
    127,132.20x = 190,784.70 × 70,972.20
  4. Step 4: Simplify right side
    127,132.20x = 13,540,409,885.34
  5. Step 5: Solve for x
    x = 13,540,409,885.34/127,132.20
  6. Step 6: Final answer
    x = 106,506.53

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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.