Home / 212,815.81-293,687.77-117,325.92

Finding the Fourth Proportional to 212,815.81, 293,687.77 and 117,325.92

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Solution

The fourth proportional to 212,815.81, 293,687.77 and 117,325.92 is: 161,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,815.81 : 293,687.77 = 117,325.92 : x
  2. Step 2: Convert to fraction form
    212,815.81/293,687.77 = 117,325.92/x
  3. Step 3: Cross multiply
    212,815.81x = 293,687.77 × 117,325.92
  4. Step 4: Simplify right side
    212,815.81x = 34,457,187,808.00
  5. Step 5: Solve for x
    x = 34,457,187,808.00/212,815.81
  6. Step 6: Final answer
    x = 161,910.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.