Home / 142,374.74-196,471.04-81,904.19

Finding the Fourth Proportional to 142,374.74, 196,471.04 and 81,904.19

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Solution

The fourth proportional to 142,374.74, 196,471.04 and 81,904.19 is: 113,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,374.74 : 196,471.04 = 81,904.19 : x
  2. Step 2: Convert to fraction form
    142,374.74/196,471.04 = 81,904.19/x
  3. Step 3: Cross multiply
    142,374.74x = 196,471.04 × 81,904.19
  4. Step 4: Simplify right side
    142,374.74x = 16,091,799,997.78
  5. Step 5: Solve for x
    x = 16,091,799,997.78/142,374.74
  6. Step 6: Final answer
    x = 113,024.27

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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.