Home / 90,314.28-135,262.94-64,855.58

Finding the Fourth Proportional to 90,314.28, 135,262.94 and 64,855.58

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Solution

The fourth proportional to 90,314.28, 135,262.94 and 64,855.58 is: 97,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,314.28 : 135,262.94 = 64,855.58 : x
  2. Step 2: Convert to fraction form
    90,314.28/135,262.94 = 64,855.58/x
  3. Step 3: Cross multiply
    90,314.28x = 135,262.94 × 64,855.58
  4. Step 4: Simplify right side
    90,314.28x = 8,772,555,425.61
  5. Step 5: Solve for x
    x = 8,772,555,425.61/90,314.28
  6. Step 6: Final answer
    x = 97,133.65

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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.