Home / 127,729.20-191,593.80-83,492.40

Finding the Fourth Proportional to 127,729.20, 191,593.80 and 83,492.40

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Solution

The fourth proportional to 127,729.20, 191,593.80 and 83,492.40 is: 125,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.20 : 191,593.80 = 83,492.40 : x
  2. Step 2: Convert to fraction form
    127,729.20/191,593.80 = 83,492.40/x
  3. Step 3: Cross multiply
    127,729.20x = 191,593.80 × 83,492.40
  4. Step 4: Simplify right side
    127,729.20x = 15,996,626,187.12
  5. Step 5: Solve for x
    x = 15,996,626,187.12/127,729.20
  6. Step 6: Final answer
    x = 125,238.60

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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.