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Finding the Fourth Proportional to 120,313.68, 180,435.47 and 36,070.48

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Solution

The fourth proportional to 120,313.68, 180,435.47 and 36,070.48 is: 54,095.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,313.68 : 180,435.47 = 36,070.48 : x
  2. Step 2: Convert to fraction form
    120,313.68/180,435.47 = 36,070.48/x
  3. Step 3: Cross multiply
    120,313.68x = 180,435.47 × 36,070.48
  4. Step 4: Simplify right side
    120,313.68x = 6,508,393,199.92
  5. Step 5: Solve for x
    x = 6,508,393,199.92/120,313.68
  6. Step 6: Final answer
    x = 54,095.21

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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.