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Finding the Fourth Proportional to 152,205.60, 209,992.86 and 88,529.88

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Solution

The fourth proportional to 152,205.60, 209,992.86 and 88,529.88 is: 122,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,205.60 : 209,992.86 = 88,529.88 : x
  2. Step 2: Convert to fraction form
    152,205.60/209,992.86 = 88,529.88/x
  3. Step 3: Cross multiply
    152,205.60x = 209,992.86 × 88,529.88
  4. Step 4: Simplify right side
    152,205.60x = 18,590,642,696.66
  5. Step 5: Solve for x
    x = 18,590,642,696.66/152,205.60
  6. Step 6: Final answer
    x = 122,141.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.