Home / 155,933.70-215,188.23-87,950.46

Finding the Fourth Proportional to 155,933.70, 215,188.23 and 87,950.46

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Solution

The fourth proportional to 155,933.70, 215,188.23 and 87,950.46 is: 121,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,933.70 : 215,188.23 = 87,950.46 : x
  2. Step 2: Convert to fraction form
    155,933.70/215,188.23 = 87,950.46/x
  3. Step 3: Cross multiply
    155,933.70x = 215,188.23 × 87,950.46
  4. Step 4: Simplify right side
    155,933.70x = 18,925,903,815.09
  5. Step 5: Solve for x
    x = 18,925,903,815.09/155,933.70
  6. Step 6: Final answer
    x = 121,371.48

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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.