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Finding the Fourth Proportional to 144,960.72, 199,960.84 and 91,160.40

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Solution

The fourth proportional to 144,960.72, 199,960.84 and 91,160.40 is: 125,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,960.72 : 199,960.84 = 91,160.40 : x
  2. Step 2: Convert to fraction form
    144,960.72/199,960.84 = 91,160.40/x
  3. Step 3: Cross multiply
    144,960.72x = 199,960.84 × 91,160.40
  4. Step 4: Simplify right side
    144,960.72x = 18,228,510,158.74
  5. Step 5: Solve for x
    x = 18,228,510,158.74/144,960.72
  6. Step 6: Final answer
    x = 125,747.93

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1.5x scale

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.