Home / 105,485.40-158,228.76-43,155.90

Finding the Fourth Proportional to 105,485.40, 158,228.76 and 43,155.90

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Solution

The fourth proportional to 105,485.40, 158,228.76 and 43,155.90 is: 64,734.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,485.40 : 158,228.76 = 43,155.90 : x
  2. Step 2: Convert to fraction form
    105,485.40/158,228.76 = 43,155.90/x
  3. Step 3: Cross multiply
    105,485.40x = 158,228.76 × 43,155.90
  4. Step 4: Simplify right side
    105,485.40x = 6,828,504,543.68
  5. Step 5: Solve for x
    x = 6,828,504,543.68/105,485.40
  6. Step 6: Final answer
    x = 64,734.12

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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.