Home / 127,445.40-191,168.10-38,694.60

Finding the Fourth Proportional to 127,445.40, 191,168.10 and 38,694.60

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Solution

The fourth proportional to 127,445.40, 191,168.10 and 38,694.60 is: 58,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,445.40 : 191,168.10 = 38,694.60 : x
  2. Step 2: Convert to fraction form
    127,445.40/191,168.10 = 38,694.60/x
  3. Step 3: Cross multiply
    127,445.40x = 191,168.10 × 38,694.60
  4. Step 4: Simplify right side
    127,445.40x = 7,397,173,162.26
  5. Step 5: Solve for x
    x = 7,397,173,162.26/127,445.40
  6. Step 6: Final answer
    x = 58,041.90

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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.