Home / 280,154.44-420,155.34-93,141.64

Finding the Fourth Proportional to 280,154.44, 420,155.34 and 93,141.64

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Solution

The fourth proportional to 280,154.44, 420,155.34 and 93,141.64 is: 139,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,154.44 : 420,155.34 = 93,141.64 : x
  2. Step 2: Convert to fraction form
    280,154.44/420,155.34 = 93,141.64/x
  3. Step 3: Cross multiply
    280,154.44x = 420,155.34 × 93,141.64
  4. Step 4: Simplify right side
    280,154.44x = 39,133,957,422.36
  5. Step 5: Solve for x
    x = 39,133,957,422.36/280,154.44
  6. Step 6: Final answer
    x = 139,687.09

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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.