Home / 122,145.57-183,189.40-68,861.14

Finding the Fourth Proportional to 122,145.57, 183,189.40 and 68,861.14

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Solution

The fourth proportional to 122,145.57, 183,189.40 and 68,861.14 is: 103,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,145.57 : 183,189.40 = 68,861.14 : x
  2. Step 2: Convert to fraction form
    122,145.57/183,189.40 = 68,861.14/x
  3. Step 3: Cross multiply
    122,145.57x = 183,189.40 × 68,861.14
  4. Step 4: Simplify right side
    122,145.57x = 12,614,630,289.79
  5. Step 5: Solve for x
    x = 12,614,630,289.79/122,145.57
  6. Step 6: Final answer
    x = 103,275.38

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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.