Home / 144,778.77-217,611-141,678.09

Finding the Fourth Proportional to 144,778.77, 217,611 and 141,678.09

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Solution

The fourth proportional to 144,778.77, 217,611 and 141,678.09 is: 212,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,778.77 : 217,611 = 141,678.09 : x
  2. Step 2: Convert to fraction form
    144,778.77/217,611 = 141,678.09/x
  3. Step 3: Cross multiply
    144,778.77x = 217,611 × 141,678.09
  4. Step 4: Simplify right side
    144,778.77x = 30,830,710,842.99
  5. Step 5: Solve for x
    x = 30,830,710,842.99/144,778.77
  6. Step 6: Final answer
    x = 212,950.50

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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.