Home / 103,536.01-142,527.09-76,627.81

Finding the Fourth Proportional to 103,536.01, 142,527.09 and 76,627.81

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Solution

The fourth proportional to 103,536.01, 142,527.09 and 76,627.81 is: 105,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,536.01 : 142,527.09 = 76,627.81 : x
  2. Step 2: Convert to fraction form
    103,536.01/142,527.09 = 76,627.81/x
  3. Step 3: Cross multiply
    103,536.01x = 142,527.09 × 76,627.81
  4. Step 4: Simplify right side
    103,536.01x = 10,921,538,772.37
  5. Step 5: Solve for x
    x = 10,921,538,772.37/103,536.01
  6. Step 6: Final answer
    x = 105,485.41

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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.