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Finding the Fourth Proportional to 140,562.57, 210,843.68 and 45,792.60

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Solution

The fourth proportional to 140,562.57, 210,843.68 and 45,792.60 is: 68,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,562.57 : 210,843.68 = 45,792.60 : x
  2. Step 2: Convert to fraction form
    140,562.57/210,843.68 = 45,792.60/x
  3. Step 3: Cross multiply
    140,562.57x = 210,843.68 × 45,792.60
  4. Step 4: Simplify right side
    140,562.57x = 9,655,080,071.81
  5. Step 5: Solve for x
    x = 9,655,080,071.81/140,562.57
  6. Step 6: Final answer
    x = 68,688.84

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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.