Home / 127,435.05-175,787.70-79,014.87

Finding the Fourth Proportional to 127,435.05, 175,787.70 and 79,014.87

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Solution

The fourth proportional to 127,435.05, 175,787.70 and 79,014.87 is: 108,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,435.05 : 175,787.70 = 79,014.87 : x
  2. Step 2: Convert to fraction form
    127,435.05/175,787.70 = 79,014.87/x
  3. Step 3: Cross multiply
    127,435.05x = 175,787.70 × 79,014.87
  4. Step 4: Simplify right side
    127,435.05x = 13,889,842,263.10
  5. Step 5: Solve for x
    x = 13,889,842,263.10/127,435.05
  6. Step 6: Final answer
    x = 108,995.46

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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.