Home / 186,427.20-257,234.12-109,970.32

Finding the Fourth Proportional to 186,427.20, 257,234.12 and 109,970.32

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Solution

The fourth proportional to 186,427.20, 257,234.12 and 109,970.32 is: 151,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,427.20 : 257,234.12 = 109,970.32 : x
  2. Step 2: Convert to fraction form
    186,427.20/257,234.12 = 109,970.32/x
  3. Step 3: Cross multiply
    186,427.20x = 257,234.12 × 109,970.32
  4. Step 4: Simplify right side
    186,427.20x = 28,288,118,491.32
  5. Step 5: Solve for x
    x = 28,288,118,491.32/186,427.20
  6. Step 6: Final answer
    x = 151,738.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.