Home / 120,868.54-181,302.88-45,971.40

Finding the Fourth Proportional to 120,868.54, 181,302.88 and 45,971.40

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Solution

The fourth proportional to 120,868.54, 181,302.88 and 45,971.40 is: 68,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,868.54 : 181,302.88 = 45,971.40 : x
  2. Step 2: Convert to fraction form
    120,868.54/181,302.88 = 45,971.40/x
  3. Step 3: Cross multiply
    120,868.54x = 181,302.88 × 45,971.40
  4. Step 4: Simplify right side
    120,868.54x = 8,334,747,217.63
  5. Step 5: Solve for x
    x = 8,334,747,217.63/120,868.54
  6. Step 6: Final answer
    x = 68,957.13

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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.