Home / 105,617.37-158,221.91-58,728.09

Finding the Fourth Proportional to 105,617.37, 158,221.91 and 58,728.09

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Solution

The fourth proportional to 105,617.37, 158,221.91 and 58,728.09 is: 87,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,617.37 : 158,221.91 = 58,728.09 : x
  2. Step 2: Convert to fraction form
    105,617.37/158,221.91 = 58,728.09/x
  3. Step 3: Cross multiply
    105,617.37x = 158,221.91 × 58,728.09
  4. Step 4: Simplify right side
    105,617.37x = 9,292,070,276.81
  5. Step 5: Solve for x
    x = 9,292,070,276.81/105,617.37
  6. Step 6: Final answer
    x = 87,978.62

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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.