Home / 280,141.50-420,215.97-93,153.06

Finding the Fourth Proportional to 280,141.50, 420,215.97 and 93,153.06

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Solution

The fourth proportional to 280,141.50, 420,215.97 and 93,153.06 is: 139,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,141.50 : 420,215.97 = 93,153.06 : x
  2. Step 2: Convert to fraction form
    280,141.50/420,215.97 = 93,153.06/x
  3. Step 3: Cross multiply
    280,141.50x = 420,215.97 × 93,153.06
  4. Step 4: Simplify right side
    280,141.50x = 39,144,403,466.37
  5. Step 5: Solve for x
    x = 39,144,403,466.37/280,141.50
  6. Step 6: Final answer
    x = 139,730.83

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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.