Home / 133,084.32-183,680.16-79,372.80

Finding the Fourth Proportional to 133,084.32, 183,680.16 and 79,372.80

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Solution

The fourth proportional to 133,084.32, 183,680.16 and 79,372.80 is: 109,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,084.32 : 183,680.16 = 79,372.80 : x
  2. Step 2: Convert to fraction form
    133,084.32/183,680.16 = 79,372.80/x
  3. Step 3: Cross multiply
    133,084.32x = 183,680.16 × 79,372.80
  4. Step 4: Simplify right side
    133,084.32x = 14,579,208,603.65
  5. Step 5: Solve for x
    x = 14,579,208,603.65/133,084.32
  6. Step 6: Final answer
    x = 109,548.66

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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.