Home / 127,312.20-190,968.30-38,579.40

Finding the Fourth Proportional to 127,312.20, 190,968.30 and 38,579.40

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Solution

The fourth proportional to 127,312.20, 190,968.30 and 38,579.40 is: 57,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.20 : 190,968.30 = 38,579.40 : x
  2. Step 2: Convert to fraction form
    127,312.20/190,968.30 = 38,579.40/x
  3. Step 3: Cross multiply
    127,312.20x = 190,968.30 × 38,579.40
  4. Step 4: Simplify right side
    127,312.20x = 7,367,442,433.02
  5. Step 5: Solve for x
    x = 7,367,442,433.02/127,312.20
  6. Step 6: Final answer
    x = 57,869.10

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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.