Home / 186,331.54-257,124.55-105,760.70

Finding the Fourth Proportional to 186,331.54, 257,124.55 and 105,760.70

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Solution

The fourth proportional to 186,331.54, 257,124.55 and 105,760.70 is: 145,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,331.54 : 257,124.55 = 105,760.70 : x
  2. Step 2: Convert to fraction form
    186,331.54/257,124.55 = 105,760.70/x
  3. Step 3: Cross multiply
    186,331.54x = 257,124.55 × 105,760.70
  4. Step 4: Simplify right side
    186,331.54x = 27,193,672,130.78
  5. Step 5: Solve for x
    x = 27,193,672,130.78/186,331.54
  6. Step 6: Final answer
    x = 145,942.40

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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.