Home / 133,319.99-183,981.17-72,890.55

Finding the Fourth Proportional to 133,319.99, 183,981.17 and 72,890.55

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Solution

The fourth proportional to 133,319.99, 183,981.17 and 72,890.55 is: 100,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,319.99 : 183,981.17 = 72,890.55 : x
  2. Step 2: Convert to fraction form
    133,319.99/183,981.17 = 72,890.55/x
  3. Step 3: Cross multiply
    133,319.99x = 183,981.17 × 72,890.55
  4. Step 4: Simplify right side
    133,319.99x = 13,410,488,853.17
  5. Step 5: Solve for x
    x = 13,410,488,853.17/133,319.99
  6. Step 6: Final answer
    x = 100,588.73

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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.