Home / 105,490.09-158,234.66-43,160.59

Finding the Fourth Proportional to 105,490.09, 158,234.66 and 43,160.59

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Solution

The fourth proportional to 105,490.09, 158,234.66 and 43,160.59 is: 64,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,490.09 : 158,234.66 = 43,160.59 : x
  2. Step 2: Convert to fraction form
    105,490.09/158,234.66 = 43,160.59/x
  3. Step 3: Cross multiply
    105,490.09x = 158,234.66 × 43,160.59
  4. Step 4: Simplify right side
    105,490.09x = 6,829,501,284.05
  5. Step 5: Solve for x
    x = 6,829,501,284.05/105,490.09
  6. Step 6: Final answer
    x = 64,740.69

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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.