Home / 105,037.07-157,474.83-54,381.80

Finding the Fourth Proportional to 105,037.07, 157,474.83 and 54,381.80

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Solution

The fourth proportional to 105,037.07, 157,474.83 and 54,381.80 is: 81,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,037.07 : 157,474.83 = 54,381.80 : x
  2. Step 2: Convert to fraction form
    105,037.07/157,474.83 = 54,381.80/x
  3. Step 3: Cross multiply
    105,037.07x = 157,474.83 × 54,381.80
  4. Step 4: Simplify right side
    105,037.07x = 8,563,764,421.92
  5. Step 5: Solve for x
    x = 8,563,764,421.92/105,037.07
  6. Step 6: Final answer
    x = 81,530.88

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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.