Home / 103,936.59-143,432.37-56,189.79

Finding the Fourth Proportional to 103,936.59, 143,432.37 and 56,189.79

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Solution

The fourth proportional to 103,936.59, 143,432.37 and 56,189.79 is: 77,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,936.59 : 143,432.37 = 56,189.79 : x
  2. Step 2: Convert to fraction form
    103,936.59/143,432.37 = 56,189.79/x
  3. Step 3: Cross multiply
    103,936.59x = 143,432.37 × 56,189.79
  4. Step 4: Simplify right side
    103,936.59x = 8,059,434,749.50
  5. Step 5: Solve for x
    x = 8,059,434,749.50/103,936.59
  6. Step 6: Final answer
    x = 77,541.84

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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.