Home / 189,115.35-283,423.95-138,960.15

Finding the Fourth Proportional to 189,115.35, 283,423.95 and 138,960.15

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Solution

The fourth proportional to 189,115.35, 283,423.95 and 138,960.15 is: 208,257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,115.35 : 283,423.95 = 138,960.15 : x
  2. Step 2: Convert to fraction form
    189,115.35/283,423.95 = 138,960.15/x
  3. Step 3: Cross multiply
    189,115.35x = 283,423.95 × 138,960.15
  4. Step 4: Simplify right side
    189,115.35x = 39,384,634,605.59
  5. Step 5: Solve for x
    x = 39,384,634,605.59/189,115.35
  6. Step 6: Final answer
    x = 208,257.21

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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.