Home / 142,405.96-196,605.50-88,763.63

Finding the Fourth Proportional to 142,405.96, 196,605.50 and 88,763.63

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Solution

The fourth proportional to 142,405.96, 196,605.50 and 88,763.63 is: 122,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405.96 : 196,605.50 = 88,763.63 : x
  2. Step 2: Convert to fraction form
    142,405.96/196,605.50 = 88,763.63/x
  3. Step 3: Cross multiply
    142,405.96x = 196,605.50 × 88,763.63
  4. Step 4: Simplify right side
    142,405.96x = 17,451,417,905.66
  5. Step 5: Solve for x
    x = 17,451,417,905.66/142,405.96
  6. Step 6: Final answer
    x = 122,546.97

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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.