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Finding the Fourth Proportional to 154,624.58, 213,382.74 and 86,641.70

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Solution

The fourth proportional to 154,624.58, 213,382.74 and 86,641.70 is: 119,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,624.58 : 213,382.74 = 86,641.70 : x
  2. Step 2: Convert to fraction form
    154,624.58/213,382.74 = 86,641.70/x
  3. Step 3: Cross multiply
    154,624.58x = 213,382.74 × 86,641.70
  4. Step 4: Simplify right side
    154,624.58x = 18,487,843,344.26
  5. Step 5: Solve for x
    x = 18,487,843,344.26/154,624.58
  6. Step 6: Final answer
    x = 119,566.01

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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.