Home / 120,548.68-180,798.28-45,643.04

Finding the Fourth Proportional to 120,548.68, 180,798.28 and 45,643.04

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Solution

The fourth proportional to 120,548.68, 180,798.28 and 45,643.04 is: 68,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,548.68 : 180,798.28 = 45,643.04 : x
  2. Step 2: Convert to fraction form
    120,548.68/180,798.28 = 45,643.04/x
  3. Step 3: Cross multiply
    120,548.68x = 180,798.28 × 45,643.04
  4. Step 4: Simplify right side
    120,548.68x = 8,252,183,125.97
  5. Step 5: Solve for x
    x = 8,252,183,125.97/120,548.68
  6. Step 6: Final answer
    x = 68,455.19

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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.