Home / 186,317.55-257,096.79-105,729.03

Finding the Fourth Proportional to 186,317.55, 257,096.79 and 105,729.03

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Solution

The fourth proportional to 186,317.55, 257,096.79 and 105,729.03 is: 145,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,317.55 : 257,096.79 = 105,729.03 : x
  2. Step 2: Convert to fraction form
    186,317.55/257,096.79 = 105,729.03/x
  3. Step 3: Cross multiply
    186,317.55x = 257,096.79 × 105,729.03
  4. Step 4: Simplify right side
    186,317.55x = 27,182,594,222.81
  5. Step 5: Solve for x
    x = 27,182,594,222.81/186,317.55
  6. Step 6: Final answer
    x = 145,893.90

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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.