Home / 120,047.12-180,017.63-63,873.91

Finding the Fourth Proportional to 120,047.12, 180,017.63 and 63,873.91

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Solution

The fourth proportional to 120,047.12, 180,017.63 and 63,873.91 is: 95,782.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,047.12 : 180,017.63 = 63,873.91 : x
  2. Step 2: Convert to fraction form
    120,047.12/180,017.63 = 63,873.91/x
  3. Step 3: Cross multiply
    120,047.12x = 180,017.63 × 63,873.91
  4. Step 4: Simplify right side
    120,047.12x = 11,498,428,677.58
  5. Step 5: Solve for x
    x = 11,498,428,677.58/120,047.12
  6. Step 6: Final answer
    x = 95,782.63

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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.