Home / 90,235.00-135,305.78-48,103.76

Finding the Fourth Proportional to 90,235.00, 135,305.78 and 48,103.76

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Solution

The fourth proportional to 90,235.00, 135,305.78 and 48,103.76 is: 72,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.00 : 135,305.78 = 48,103.76 : x
  2. Step 2: Convert to fraction form
    90,235.00/135,305.78 = 48,103.76/x
  3. Step 3: Cross multiply
    90,235.00x = 135,305.78 × 48,103.76
  4. Step 4: Simplify right side
    90,235.00x = 6,508,717,136.06
  5. Step 5: Solve for x
    x = 6,508,717,136.06/90,235.00
  6. Step 6: Final answer
    x = 72,130.74

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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.