Home / 186,124.09-256,830.37-109,638.20

Finding the Fourth Proportional to 186,124.09, 256,830.37 and 109,638.20

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Solution

The fourth proportional to 186,124.09, 256,830.37 and 109,638.20 is: 151,288.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,124.09 : 256,830.37 = 109,638.20 : x
  2. Step 2: Convert to fraction form
    186,124.09/256,830.37 = 109,638.20/x
  3. Step 3: Cross multiply
    186,124.09x = 256,830.37 × 109,638.20
  4. Step 4: Simplify right side
    186,124.09x = 28,158,419,840.11
  5. Step 5: Solve for x
    x = 28,158,419,840.11/186,124.09
  6. Step 6: Final answer
    x = 151,288.42

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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.