Home / 120,463.13-180,696.14-57,289.35

Finding the Fourth Proportional to 120,463.13, 180,696.14 and 57,289.35

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Solution

The fourth proportional to 120,463.13, 180,696.14 and 57,289.35 is: 85,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,463.13 : 180,696.14 = 57,289.35 : x
  2. Step 2: Convert to fraction form
    120,463.13/180,696.14 = 57,289.35/x
  3. Step 3: Cross multiply
    120,463.13x = 180,696.14 × 57,289.35
  4. Step 4: Simplify right side
    120,463.13x = 10,351,965,014.11
  5. Step 5: Solve for x
    x = 10,351,965,014.11/120,463.13
  6. Step 6: Final answer
    x = 85,934.72

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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.