Home / 127,591.50-191,324.88-77,042.64

Finding the Fourth Proportional to 127,591.50, 191,324.88 and 77,042.64

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Solution

The fourth proportional to 127,591.50, 191,324.88 and 77,042.64 is: 115,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,591.50 : 191,324.88 = 77,042.64 : x
  2. Step 2: Convert to fraction form
    127,591.50/191,324.88 = 77,042.64/x
  3. Step 3: Cross multiply
    127,591.50x = 191,324.88 × 77,042.64
  4. Step 4: Simplify right side
    127,591.50x = 14,740,173,852.88
  5. Step 5: Solve for x
    x = 14,740,173,852.88/127,591.50
  6. Step 6: Final answer
    x = 115,526.30

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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.