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Finding the Fourth Proportional to 180,124.56, 270,130.68 and 67,820.40

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Solution

The fourth proportional to 180,124.56, 270,130.68 and 67,820.40 is: 101,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,124.56 : 270,130.68 = 67,820.40 : x
  2. Step 2: Convert to fraction form
    180,124.56/270,130.68 = 67,820.40/x
  3. Step 3: Cross multiply
    180,124.56x = 270,130.68 × 67,820.40
  4. Step 4: Simplify right side
    180,124.56x = 18,320,370,769.87
  5. Step 5: Solve for x
    x = 18,320,370,769.87/180,124.56
  6. Step 6: Final answer
    x = 101,709.45

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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.