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Finding the Fourth Proportional to 187,846.80, 282,020.40 and 109,017.60

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Solution

The fourth proportional to 187,846.80, 282,020.40 and 109,017.60 is: 163,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,846.80 : 282,020.40 = 109,017.60 : x
  2. Step 2: Convert to fraction form
    187,846.80/282,020.40 = 109,017.60/x
  3. Step 3: Cross multiply
    187,846.80x = 282,020.40 × 109,017.60
  4. Step 4: Simplify right side
    187,846.80x = 30,745,187,159.04
  5. Step 5: Solve for x
    x = 30,745,187,159.04/187,846.80
  6. Step 6: Final answer
    x = 163,671.60

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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.