Home / 120,339.80-180,575.28-53,777.24

Finding the Fourth Proportional to 120,339.80, 180,575.28 and 53,777.24

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Solution

The fourth proportional to 120,339.80, 180,575.28 and 53,777.24 is: 80,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,339.80 : 180,575.28 = 53,777.24 : x
  2. Step 2: Convert to fraction form
    120,339.80/180,575.28 = 53,777.24/x
  3. Step 3: Cross multiply
    120,339.80x = 180,575.28 × 53,777.24
  4. Step 4: Simplify right side
    120,339.80x = 9,710,840,170.63
  5. Step 5: Solve for x
    x = 9,710,840,170.63/120,339.80
  6. Step 6: Final answer
    x = 80,695.17

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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.