Home / 280,116.10-420,174.15-93,103.30

Finding the Fourth Proportional to 280,116.10, 420,174.15 and 93,103.30

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Solution

The fourth proportional to 280,116.10, 420,174.15 and 93,103.30 is: 139,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,116.10 : 420,174.15 = 93,103.30 : x
  2. Step 2: Convert to fraction form
    280,116.10/420,174.15 = 93,103.30/x
  3. Step 3: Cross multiply
    280,116.10x = 420,174.15 × 93,103.30
  4. Step 4: Simplify right side
    280,116.10x = 39,119,599,939.70
  5. Step 5: Solve for x
    x = 39,119,599,939.70/280,116.10
  6. Step 6: Final answer
    x = 139,654.95

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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.