Home / 142,467.57-196,615.91-81,215.22

Finding the Fourth Proportional to 142,467.57, 196,615.91 and 81,215.22

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Solution

The fourth proportional to 142,467.57, 196,615.91 and 81,215.22 is: 112,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,467.57 : 196,615.91 = 81,215.22 : x
  2. Step 2: Convert to fraction form
    142,467.57/196,615.91 = 81,215.22/x
  3. Step 3: Cross multiply
    142,467.57x = 196,615.91 × 81,215.22
  4. Step 4: Simplify right side
    142,467.57x = 15,968,204,386.15
  5. Step 5: Solve for x
    x = 15,968,204,386.15/142,467.57
  6. Step 6: Final answer
    x = 112,083.08

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1.5x scale

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.