Home / 120,417.60-180,628.22-45,573

Finding the Fourth Proportional to 120,417.60, 180,628.22 and 45,573

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Solution

The fourth proportional to 120,417.60, 180,628.22 and 45,573 is: 68,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,417.60 : 180,628.22 = 45,573 : x
  2. Step 2: Convert to fraction form
    120,417.60/180,628.22 = 45,573/x
  3. Step 3: Cross multiply
    120,417.60x = 180,628.22 × 45,573
  4. Step 4: Simplify right side
    120,417.60x = 8,231,769,870.06
  5. Step 5: Solve for x
    x = 8,231,769,870.06/120,417.60
  6. Step 6: Final answer
    x = 68,360.19

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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.