Home / 133,047.04-183,606.64-78,601

Finding the Fourth Proportional to 133,047.04, 183,606.64 and 78,601

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Solution

The fourth proportional to 133,047.04, 183,606.64 and 78,601 is: 108,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.04 : 183,606.64 = 78,601 : x
  2. Step 2: Convert to fraction form
    133,047.04/183,606.64 = 78,601/x
  3. Step 3: Cross multiply
    133,047.04x = 183,606.64 × 78,601
  4. Step 4: Simplify right side
    133,047.04x = 14,431,665,510.64
  5. Step 5: Solve for x
    x = 14,431,665,510.64/133,047.04
  6. Step 6: Final answer
    x = 108,470.40

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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.