Home / 129,321.62-178,437.08-75,596.24

Finding the Fourth Proportional to 129,321.62, 178,437.08 and 75,596.24

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Solution

The fourth proportional to 129,321.62, 178,437.08 and 75,596.24 is: 104,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,321.62 : 178,437.08 = 75,596.24 : x
  2. Step 2: Convert to fraction form
    129,321.62/178,437.08 = 75,596.24/x
  3. Step 3: Cross multiply
    129,321.62x = 178,437.08 × 75,596.24
  4. Step 4: Simplify right side
    129,321.62x = 13,489,171,054.41
  5. Step 5: Solve for x
    x = 13,489,171,054.41/129,321.62
  6. Step 6: Final answer
    x = 104,307.17

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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.