Home / 186,305.55-257,094.45-105,728.28

Finding the Fourth Proportional to 186,305.55, 257,094.45 and 105,728.28

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Solution

The fourth proportional to 186,305.55, 257,094.45 and 105,728.28 is: 145,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,305.55 : 257,094.45 = 105,728.28 : x
  2. Step 2: Convert to fraction form
    186,305.55/257,094.45 = 105,728.28/x
  3. Step 3: Cross multiply
    186,305.55x = 257,094.45 × 105,728.28
  4. Step 4: Simplify right side
    186,305.55x = 27,182,153,996.05
  5. Step 5: Solve for x
    x = 27,182,153,996.05/186,305.55
  6. Step 6: Final answer
    x = 145,900.94

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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.