Home / 356,316.39-534,431.57-90,079.25

Finding the Fourth Proportional to 356,316.39, 534,431.57 and 90,079.25

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Solution

The fourth proportional to 356,316.39, 534,431.57 and 90,079.25 is: 135,107.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,316.39 : 534,431.57 = 90,079.25 : x
  2. Step 2: Convert to fraction form
    356,316.39/534,431.57 = 90,079.25/x
  3. Step 3: Cross multiply
    356,316.39x = 534,431.57 × 90,079.25
  4. Step 4: Simplify right side
    356,316.39x = 48,141,191,879.37
  5. Step 5: Solve for x
    x = 48,141,191,879.37/356,316.39
  6. Step 6: Final answer
    x = 135,107.99

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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.