Home / 127,442.84-190,901.75-74,725.20

Finding the Fourth Proportional to 127,442.84, 190,901.75 and 74,725.20

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Solution

The fourth proportional to 127,442.84, 190,901.75 and 74,725.20 is: 111,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,442.84 : 190,901.75 = 74,725.20 : x
  2. Step 2: Convert to fraction form
    127,442.84/190,901.75 = 74,725.20/x
  3. Step 3: Cross multiply
    127,442.84x = 190,901.75 × 74,725.20
  4. Step 4: Simplify right side
    127,442.84x = 14,265,171,075.47
  5. Step 5: Solve for x
    x = 14,265,171,075.47/127,442.84
  6. Step 6: Final answer
    x = 111,933.88

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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.