Home / 142,112.64-213,043.51-57,943.20

Finding the Fourth Proportional to 142,112.64, 213,043.51 and 57,943.20

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Solution

The fourth proportional to 142,112.64, 213,043.51 and 57,943.20 is: 86,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,112.64 : 213,043.51 = 57,943.20 : x
  2. Step 2: Convert to fraction form
    142,112.64/213,043.51 = 57,943.20/x
  3. Step 3: Cross multiply
    142,112.64x = 213,043.51 × 57,943.20
  4. Step 4: Simplify right side
    142,112.64x = 12,344,422,708.63
  5. Step 5: Solve for x
    x = 12,344,422,708.63/142,112.64
  6. Step 6: Final answer
    x = 86,863.65

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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.