Home / 93,519.30-140,624.55-78,312.90

Finding the Fourth Proportional to 93,519.30, 140,624.55 and 78,312.90

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Solution

The fourth proportional to 93,519.30, 140,624.55 and 78,312.90 is: 117,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,519.30 : 140,624.55 = 78,312.90 : x
  2. Step 2: Convert to fraction form
    93,519.30/140,624.55 = 78,312.90/x
  3. Step 3: Cross multiply
    93,519.30x = 140,624.55 × 78,312.90
  4. Step 4: Simplify right side
    93,519.30x = 11,012,716,321.70
  5. Step 5: Solve for x
    x = 11,012,716,321.70/93,519.30
  6. Step 6: Final answer
    x = 117,758.75

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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.