Home / 142,231.32-196,271.64-81,792.36

Finding the Fourth Proportional to 142,231.32, 196,271.64 and 81,792.36

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Solution

The fourth proportional to 142,231.32, 196,271.64 and 81,792.36 is: 112,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,231.32 : 196,271.64 = 81,792.36 : x
  2. Step 2: Convert to fraction form
    142,231.32/196,271.64 = 81,792.36/x
  3. Step 3: Cross multiply
    142,231.32x = 196,271.64 × 81,792.36
  4. Step 4: Simplify right side
    142,231.32x = 16,053,520,636.67
  5. Step 5: Solve for x
    x = 16,053,520,636.67/142,231.32
  6. Step 6: Final answer
    x = 112,869.10

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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.