Home / 127,019.12-190,568.16-52,145.36

Finding the Fourth Proportional to 127,019.12, 190,568.16 and 52,145.36

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Solution

The fourth proportional to 127,019.12, 190,568.16 and 52,145.36 is: 78,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,019.12 : 190,568.16 = 52,145.36 : x
  2. Step 2: Convert to fraction form
    127,019.12/190,568.16 = 52,145.36/x
  3. Step 3: Cross multiply
    127,019.12x = 190,568.16 × 52,145.36
  4. Step 4: Simplify right side
    127,019.12x = 9,937,245,307.74
  5. Step 5: Solve for x
    x = 9,937,245,307.74/127,019.12
  6. Step 6: Final answer
    x = 78,234.25

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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.