Home / 102,427.12-141,350.02-57,107.96

Finding the Fourth Proportional to 102,427.12, 141,350.02 and 57,107.96

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Solution

The fourth proportional to 102,427.12, 141,350.02 and 57,107.96 is: 78,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,427.12 : 141,350.02 = 57,107.96 : x
  2. Step 2: Convert to fraction form
    102,427.12/141,350.02 = 57,107.96/x
  3. Step 3: Cross multiply
    102,427.12x = 141,350.02 × 57,107.96
  4. Step 4: Simplify right side
    102,427.12x = 8,072,210,438.64
  5. Step 5: Solve for x
    x = 8,072,210,438.64/102,427.12
  6. Step 6: Final answer
    x = 78,809.31

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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.