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Finding the Fourth Proportional to 105,549.40, 158,103.30 and 49,437.40

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Solution

The fourth proportional to 105,549.40, 158,103.30 and 49,437.40 is: 74,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,549.40 : 158,103.30 = 49,437.40 : x
  2. Step 2: Convert to fraction form
    105,549.40/158,103.30 = 49,437.40/x
  3. Step 3: Cross multiply
    105,549.40x = 158,103.30 × 49,437.40
  4. Step 4: Simplify right side
    105,549.40x = 7,816,216,083.42
  5. Step 5: Solve for x
    x = 7,816,216,083.42/105,549.40
  6. Step 6: Final answer
    x = 74,052.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.