Home / 127,080.84-190,565.88-42,825.30

Finding the Fourth Proportional to 127,080.84, 190,565.88 and 42,825.30

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Solution

The fourth proportional to 127,080.84, 190,565.88 and 42,825.30 is: 64,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,080.84 : 190,565.88 = 42,825.30 : x
  2. Step 2: Convert to fraction form
    127,080.84/190,565.88 = 42,825.30/x
  3. Step 3: Cross multiply
    127,080.84x = 190,565.88 × 42,825.30
  4. Step 4: Simplify right side
    127,080.84x = 8,161,040,980.76
  5. Step 5: Solve for x
    x = 8,161,040,980.76/127,080.84
  6. Step 6: Final answer
    x = 64,219.29

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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.