Home / 104,036.04-143,640.09-68,286.81

Finding the Fourth Proportional to 104,036.04, 143,640.09 and 68,286.81

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Solution

The fourth proportional to 104,036.04, 143,640.09 and 68,286.81 is: 94,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,036.04 : 143,640.09 = 68,286.81 : x
  2. Step 2: Convert to fraction form
    104,036.04/143,640.09 = 68,286.81/x
  3. Step 3: Cross multiply
    104,036.04x = 143,640.09 × 68,286.81
  4. Step 4: Simplify right side
    104,036.04x = 9,808,723,534.21
  5. Step 5: Solve for x
    x = 9,808,723,534.21/104,036.04
  6. Step 6: Final answer
    x = 94,281.98

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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.