Home / 105,878.20-158,558.10-50,409.40

Finding the Fourth Proportional to 105,878.20, 158,558.10 and 50,409.40

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Solution

The fourth proportional to 105,878.20, 158,558.10 and 50,409.40 is: 75,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,878.20 : 158,558.10 = 50,409.40 : x
  2. Step 2: Convert to fraction form
    105,878.20/158,558.10 = 50,409.40/x
  3. Step 3: Cross multiply
    105,878.20x = 158,558.10 × 50,409.40
  4. Step 4: Simplify right side
    105,878.20x = 7,992,818,686.14
  5. Step 5: Solve for x
    x = 7,992,818,686.14/105,878.20
  6. Step 6: Final answer
    x = 75,490.69

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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.