Home / 105,735.27-158,638.45-39,180.76

Finding the Fourth Proportional to 105,735.27, 158,638.45 and 39,180.76

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Solution

The fourth proportional to 105,735.27, 158,638.45 and 39,180.76 is: 58,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,735.27 : 158,638.45 = 39,180.76 : x
  2. Step 2: Convert to fraction form
    105,735.27/158,638.45 = 39,180.76/x
  3. Step 3: Cross multiply
    105,735.27x = 158,638.45 × 39,180.76
  4. Step 4: Simplify right side
    105,735.27x = 6,215,575,507.48
  5. Step 5: Solve for x
    x = 6,215,575,507.48/105,735.27
  6. Step 6: Final answer
    x = 58,784.31

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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.