Home / 142,029.31-196,071.51-88,331.68

Finding the Fourth Proportional to 142,029.31, 196,071.51 and 88,331.68

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Solution

The fourth proportional to 142,029.31, 196,071.51 and 88,331.68 is: 121,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,029.31 : 196,071.51 = 88,331.68 : x
  2. Step 2: Convert to fraction form
    142,029.31/196,071.51 = 88,331.68/x
  3. Step 3: Cross multiply
    142,029.31x = 196,071.51 × 88,331.68
  4. Step 4: Simplify right side
    142,029.31x = 17,319,325,878.44
  5. Step 5: Solve for x
    x = 17,319,325,878.44/142,029.31
  6. Step 6: Final answer
    x = 121,941.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.