Home / 105,218.64-145,199.61-59,895.65

Finding the Fourth Proportional to 105,218.64, 145,199.61 and 59,895.65

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Solution

The fourth proportional to 105,218.64, 145,199.61 and 59,895.65 is: 82,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,218.64 : 145,199.61 = 59,895.65 : x
  2. Step 2: Convert to fraction form
    105,218.64/145,199.61 = 59,895.65/x
  3. Step 3: Cross multiply
    105,218.64x = 145,199.61 × 59,895.65
  4. Step 4: Simplify right side
    105,218.64x = 8,696,825,383.70
  5. Step 5: Solve for x
    x = 8,696,825,383.70/105,218.64
  6. Step 6: Final answer
    x = 82,654.80

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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.