Home / 90,173.34-135,210.03-36,902.72

Finding the Fourth Proportional to 90,173.34, 135,210.03 and 36,902.72

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Solution

The fourth proportional to 90,173.34, 135,210.03 and 36,902.72 is: 55,333.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,173.34 : 135,210.03 = 36,902.72 : x
  2. Step 2: Convert to fraction form
    90,173.34/135,210.03 = 36,902.72/x
  3. Step 3: Cross multiply
    90,173.34x = 135,210.03 × 36,902.72
  4. Step 4: Simplify right side
    90,173.34x = 4,989,617,202.23
  5. Step 5: Solve for x
    x = 4,989,617,202.23/90,173.34
  6. Step 6: Final answer
    x = 55,333.62

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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.