Home / 142,738.74-213,962.31-92,918.88

Finding the Fourth Proportional to 142,738.74, 213,962.31 and 92,918.88

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Solution

The fourth proportional to 142,738.74, 213,962.31 and 92,918.88 is: 139,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,738.74 : 213,962.31 = 92,918.88 : x
  2. Step 2: Convert to fraction form
    142,738.74/213,962.31 = 92,918.88/x
  3. Step 3: Cross multiply
    142,738.74x = 213,962.31 × 92,918.88
  4. Step 4: Simplify right side
    142,738.74x = 19,881,138,207.41
  5. Step 5: Solve for x
    x = 19,881,138,207.41/142,738.74
  6. Step 6: Final answer
    x = 139,283.41

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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.