Home / 187,871.04-281,928.69-81,359.01

Finding the Fourth Proportional to 187,871.04, 281,928.69 and 81,359.01

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Solution

The fourth proportional to 187,871.04, 281,928.69 and 81,359.01 is: 122,091.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,871.04 : 281,928.69 = 81,359.01 : x
  2. Step 2: Convert to fraction form
    187,871.04/281,928.69 = 81,359.01/x
  3. Step 3: Cross multiply
    187,871.04x = 281,928.69 × 81,359.01
  4. Step 4: Simplify right side
    187,871.04x = 22,937,439,109.00
  5. Step 5: Solve for x
    x = 22,937,439,109.00/187,871.04
  6. Step 6: Final answer
    x = 122,091.40

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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.