Home / 127,017.12-190,565.16-52,143.36

Finding the Fourth Proportional to 127,017.12, 190,565.16 and 52,143.36

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Solution

The fourth proportional to 127,017.12, 190,565.16 and 52,143.36 is: 78,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,017.12 : 190,565.16 = 52,143.36 : x
  2. Step 2: Convert to fraction form
    127,017.12/190,565.16 = 52,143.36/x
  3. Step 3: Cross multiply
    127,017.12x = 190,565.16 × 52,143.36
  4. Step 4: Simplify right side
    127,017.12x = 9,936,707,741.34
  5. Step 5: Solve for x
    x = 9,936,707,741.34/127,017.12
  6. Step 6: Final answer
    x = 78,231.25

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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.