Home / 185,624.10-278,436.15-129,636.90

Finding the Fourth Proportional to 185,624.10, 278,436.15 and 129,636.90

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Solution

The fourth proportional to 185,624.10, 278,436.15 and 129,636.90 is: 194,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,624.10 : 278,436.15 = 129,636.90 : x
  2. Step 2: Convert to fraction form
    185,624.10/278,436.15 = 129,636.90/x
  3. Step 3: Cross multiply
    185,624.10x = 278,436.15 × 129,636.90
  4. Step 4: Simplify right side
    185,624.10x = 36,095,599,333.94
  5. Step 5: Solve for x
    x = 36,095,599,333.94/185,624.10
  6. Step 6: Final answer
    x = 194,455.35

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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.