Home / 138,836.43-191,594.70-75,173.94

Finding the Fourth Proportional to 138,836.43, 191,594.70 and 75,173.94

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Solution

The fourth proportional to 138,836.43, 191,594.70 and 75,173.94 is: 103,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,836.43 : 191,594.70 = 75,173.94 : x
  2. Step 2: Convert to fraction form
    138,836.43/191,594.70 = 75,173.94/x
  3. Step 3: Cross multiply
    138,836.43x = 191,594.70 × 75,173.94
  4. Step 4: Simplify right side
    138,836.43x = 14,402,928,482.12
  5. Step 5: Solve for x
    x = 14,402,928,482.12/138,836.43
  6. Step 6: Final answer
    x = 103,740.27

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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.