Home / 120,184.77-180,150.02-45,272.51

Finding the Fourth Proportional to 120,184.77, 180,150.02 and 45,272.51

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Solution

The fourth proportional to 120,184.77, 180,150.02 and 45,272.51 is: 67,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,184.77 : 180,150.02 = 45,272.51 : x
  2. Step 2: Convert to fraction form
    120,184.77/180,150.02 = 45,272.51/x
  3. Step 3: Cross multiply
    120,184.77x = 180,150.02 × 45,272.51
  4. Step 4: Simplify right side
    120,184.77x = 8,155,843,581.95
  5. Step 5: Solve for x
    x = 8,155,843,581.95/120,184.77
  6. Step 6: Final answer
    x = 67,860.87

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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.