Home / 145,440.96-200,543.05-102,406.70

Finding the Fourth Proportional to 145,440.96, 200,543.05 and 102,406.70

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Solution

The fourth proportional to 145,440.96, 200,543.05 and 102,406.70 is: 141,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,440.96 : 200,543.05 = 102,406.70 : x
  2. Step 2: Convert to fraction form
    145,440.96/200,543.05 = 102,406.70/x
  3. Step 3: Cross multiply
    145,440.96x = 200,543.05 × 102,406.70
  4. Step 4: Simplify right side
    145,440.96x = 20,536,951,958.44
  5. Step 5: Solve for x
    x = 20,536,951,958.44/145,440.96
  6. Step 6: Final answer
    x = 141,204.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.