Home / 210,519.21-316,003.52-90,635.49

Finding the Fourth Proportional to 210,519.21, 316,003.52 and 90,635.49

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Solution

The fourth proportional to 210,519.21, 316,003.52 and 90,635.49 is: 136,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,519.21 : 316,003.52 = 90,635.49 : x
  2. Step 2: Convert to fraction form
    210,519.21/316,003.52 = 90,635.49/x
  3. Step 3: Cross multiply
    210,519.21x = 316,003.52 × 90,635.49
  4. Step 4: Simplify right side
    210,519.21x = 28,641,133,423.75
  5. Step 5: Solve for x
    x = 28,641,133,423.75/210,519.21
  6. Step 6: Final answer
    x = 136,049.98

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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.