Home / 141,987.76-212,771.28-57,645.36

Finding the Fourth Proportional to 141,987.76, 212,771.28 and 57,645.36

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Solution

The fourth proportional to 141,987.76, 212,771.28 and 57,645.36 is: 86,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,987.76 : 212,771.28 = 57,645.36 : x
  2. Step 2: Convert to fraction form
    141,987.76/212,771.28 = 57,645.36/x
  3. Step 3: Cross multiply
    141,987.76x = 212,771.28 × 57,645.36
  4. Step 4: Simplify right side
    141,987.76x = 12,265,277,033.26
  5. Step 5: Solve for x
    x = 12,265,277,033.26/141,987.76
  6. Step 6: Final answer
    x = 86,382.64

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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.