Home / 109,941.89-151,720.10-59,640.89

Finding the Fourth Proportional to 109,941.89, 151,720.10 and 59,640.89

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Solution

The fourth proportional to 109,941.89, 151,720.10 and 59,640.89 is: 82,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,941.89 : 151,720.10 = 59,640.89 : x
  2. Step 2: Convert to fraction form
    109,941.89/151,720.10 = 59,640.89/x
  3. Step 3: Cross multiply
    109,941.89x = 151,720.10 × 59,640.89
  4. Step 4: Simplify right side
    109,941.89x = 9,048,721,794.89
  5. Step 5: Solve for x
    x = 9,048,721,794.89/109,941.89
  6. Step 6: Final answer
    x = 82,304.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.