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Finding the Fourth Proportional to 140,005.80, 210,008.70 and 134,173.80

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Solution

The fourth proportional to 140,005.80, 210,008.70 and 134,173.80 is: 201,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.80 : 210,008.70 = 134,173.80 : x
  2. Step 2: Convert to fraction form
    140,005.80/210,008.70 = 134,173.80/x
  3. Step 3: Cross multiply
    140,005.80x = 210,008.70 × 134,173.80
  4. Step 4: Simplify right side
    140,005.80x = 28,177,665,312.06
  5. Step 5: Solve for x
    x = 28,177,665,312.06/140,005.80
  6. Step 6: Final answer
    x = 201,260.70

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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.