Home / 171,660.20-257,490.30-118,516.10

Finding the Fourth Proportional to 171,660.20, 257,490.30 and 118,516.10

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Solution

The fourth proportional to 171,660.20, 257,490.30 and 118,516.10 is: 177,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,660.20 : 257,490.30 = 118,516.10 : x
  2. Step 2: Convert to fraction form
    171,660.20/257,490.30 = 118,516.10/x
  3. Step 3: Cross multiply
    171,660.20x = 257,490.30 × 118,516.10
  4. Step 4: Simplify right side
    171,660.20x = 30,516,746,143.83
  5. Step 5: Solve for x
    x = 30,516,746,143.83/171,660.20
  6. Step 6: Final answer
    x = 177,774.15

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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.