Home / 186,031.20-279,111.60-80,925.60

Finding the Fourth Proportional to 186,031.20, 279,111.60 and 80,925.60

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Solution

The fourth proportional to 186,031.20, 279,111.60 and 80,925.60 is: 121,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,031.20 : 279,111.60 = 80,925.60 : x
  2. Step 2: Convert to fraction form
    186,031.20/279,111.60 = 80,925.60/x
  3. Step 3: Cross multiply
    186,031.20x = 279,111.60 × 80,925.60
  4. Step 4: Simplify right side
    186,031.20x = 22,587,273,696.96
  5. Step 5: Solve for x
    x = 22,587,273,696.96/186,031.20
  6. Step 6: Final answer
    x = 121,416.59

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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.