Home / 133,314-183,975.56-79,603.72

Finding the Fourth Proportional to 133,314, 183,975.56 and 79,603.72

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Solution

The fourth proportional to 133,314, 183,975.56 and 79,603.72 is: 109,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,314 : 183,975.56 = 79,603.72 : x
  2. Step 2: Convert to fraction form
    133,314/183,975.56 = 79,603.72/x
  3. Step 3: Cross multiply
    133,314x = 183,975.56 × 79,603.72
  4. Step 4: Simplify right side
    133,314x = 14,645,138,965.08
  5. Step 5: Solve for x
    x = 14,645,138,965.08/133,314
  6. Step 6: Final answer
    x = 109,854.47

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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.