Home / 142,505.15-196,599.95-82,043.36

Finding the Fourth Proportional to 142,505.15, 196,599.95 and 82,043.36

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Solution

The fourth proportional to 142,505.15, 196,599.95 and 82,043.36 is: 113,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,505.15 : 196,599.95 = 82,043.36 : x
  2. Step 2: Convert to fraction form
    142,505.15/196,599.95 = 82,043.36/x
  3. Step 3: Cross multiply
    142,505.15x = 196,599.95 × 82,043.36
  4. Step 4: Simplify right side
    142,505.15x = 16,129,720,473.83
  5. Step 5: Solve for x
    x = 16,129,720,473.83/142,505.15
  6. Step 6: Final answer
    x = 113,186.93

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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.