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Finding the Fourth Proportional to 144,486.79, 216,730.49 and 77,958.25

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Solution

The fourth proportional to 144,486.79, 216,730.49 and 77,958.25 is: 116,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,486.79 : 216,730.49 = 77,958.25 : x
  2. Step 2: Convert to fraction form
    144,486.79/216,730.49 = 77,958.25/x
  3. Step 3: Cross multiply
    144,486.79x = 216,730.49 × 77,958.25
  4. Step 4: Simplify right side
    144,486.79x = 16,895,928,790.43
  5. Step 5: Solve for x
    x = 16,895,928,790.43/144,486.79
  6. Step 6: Final answer
    x = 116,937.54

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1.5x scale

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.