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Finding the Fourth Proportional to 140,125.61, 210,271.45 and 131,259.55

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Solution

The fourth proportional to 140,125.61, 210,271.45 and 131,259.55 is: 196,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,125.61 : 210,271.45 = 131,259.55 : x
  2. Step 2: Convert to fraction form
    140,125.61/210,271.45 = 131,259.55/x
  3. Step 3: Cross multiply
    140,125.61x = 210,271.45 × 131,259.55
  4. Step 4: Simplify right side
    140,125.61x = 27,600,135,904.85
  5. Step 5: Solve for x
    x = 27,600,135,904.85/140,125.61
  6. Step 6: Final answer
    x = 196,967.11

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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.