Home / 143,863.03-215,927.63-72,835.57

Finding the Fourth Proportional to 143,863.03, 215,927.63 and 72,835.57

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Solution

The fourth proportional to 143,863.03, 215,927.63 and 72,835.57 is: 109,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.03 : 215,927.63 = 72,835.57 : x
  2. Step 2: Convert to fraction form
    143,863.03/215,927.63 = 72,835.57/x
  3. Step 3: Cross multiply
    143,863.03x = 215,927.63 × 72,835.57
  4. Step 4: Simplify right side
    143,863.03x = 15,727,212,009.80
  5. Step 5: Solve for x
    x = 15,727,212,009.80/143,863.03
  6. Step 6: Final answer
    x = 109,320.73

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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.