Home / 105,426.72-158,140.09-30,546.92

Finding the Fourth Proportional to 105,426.72, 158,140.09 and 30,546.92

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Solution

The fourth proportional to 105,426.72, 158,140.09 and 30,546.92 is: 45,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,426.72 : 158,140.09 = 30,546.92 : x
  2. Step 2: Convert to fraction form
    105,426.72/158,140.09 = 30,546.92/x
  3. Step 3: Cross multiply
    105,426.72x = 158,140.09 × 30,546.92
  4. Step 4: Simplify right side
    105,426.72x = 4,830,691,810.96
  5. Step 5: Solve for x
    x = 4,830,691,810.96/105,426.72
  6. Step 6: Final answer
    x = 45,820.37

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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.