Home / 189,007.50-283,511.88-129,663.30

Finding the Fourth Proportional to 189,007.50, 283,511.88 and 129,663.30

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Solution

The fourth proportional to 189,007.50, 283,511.88 and 129,663.30 is: 194,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.50 : 283,511.88 = 129,663.30 : x
  2. Step 2: Convert to fraction form
    189,007.50/283,511.88 = 129,663.30/x
  3. Step 3: Cross multiply
    189,007.50x = 283,511.88 × 129,663.30
  4. Step 4: Simplify right side
    189,007.50x = 36,761,085,950.00
  5. Step 5: Solve for x
    x = 36,761,085,950.00/189,007.50
  6. Step 6: Final answer
    x = 194,495.38

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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.