Home / 127,806.40-191,709.60-112,254.40

Finding the Fourth Proportional to 127,806.40, 191,709.60 and 112,254.40

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Solution

The fourth proportional to 127,806.40, 191,709.60 and 112,254.40 is: 168,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.40 : 191,709.60 = 112,254.40 : x
  2. Step 2: Convert to fraction form
    127,806.40/191,709.60 = 112,254.40/x
  3. Step 3: Cross multiply
    127,806.40x = 191,709.60 × 112,254.40
  4. Step 4: Simplify right side
    127,806.40x = 21,520,246,122.24
  5. Step 5: Solve for x
    x = 21,520,246,122.24/127,806.40
  6. Step 6: Final answer
    x = 168,381.60

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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.