Home / 105,056.11-144,977.86-57,310.46

Finding the Fourth Proportional to 105,056.11, 144,977.86 and 57,310.46

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Solution

The fourth proportional to 105,056.11, 144,977.86 and 57,310.46 is: 79,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,056.11 : 144,977.86 = 57,310.46 : x
  2. Step 2: Convert to fraction form
    105,056.11/144,977.86 = 57,310.46/x
  3. Step 3: Cross multiply
    105,056.11x = 144,977.86 × 57,310.46
  4. Step 4: Simplify right side
    105,056.11x = 8,308,747,736.83
  5. Step 5: Solve for x
    x = 8,308,747,736.83/105,056.11
  6. Step 6: Final answer
    x = 79,088.67

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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.