Home / 127,685.77-191,528.12-38,939.02

Finding the Fourth Proportional to 127,685.77, 191,528.12 and 38,939.02

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Solution

The fourth proportional to 127,685.77, 191,528.12 and 38,939.02 is: 58,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,685.77 : 191,528.12 = 38,939.02 : x
  2. Step 2: Convert to fraction form
    127,685.77/191,528.12 = 38,939.02/x
  3. Step 3: Cross multiply
    127,685.77x = 191,528.12 × 38,939.02
  4. Step 4: Simplify right side
    127,685.77x = 7,457,916,913.77
  5. Step 5: Solve for x
    x = 7,457,916,913.77/127,685.77
  6. Step 6: Final answer
    x = 58,408.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.