Home / 120,475.36-180,708.58-57,340.72

Finding the Fourth Proportional to 120,475.36, 180,708.58 and 57,340.72

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Solution

The fourth proportional to 120,475.36, 180,708.58 and 57,340.72 is: 86,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.36 : 180,708.58 = 57,340.72 : x
  2. Step 2: Convert to fraction form
    120,475.36/180,708.58 = 57,340.72/x
  3. Step 3: Cross multiply
    120,475.36x = 180,708.58 × 57,340.72
  4. Step 4: Simplify right side
    120,475.36x = 10,361,960,087.38
  5. Step 5: Solve for x
    x = 10,361,960,087.38/120,475.36
  6. Step 6: Final answer
    x = 86,008.96

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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.