Home / 90,165.08-135,210.74-40,211.03

Finding the Fourth Proportional to 90,165.08, 135,210.74 and 40,211.03

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Solution

The fourth proportional to 90,165.08, 135,210.74 and 40,211.03 is: 60,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,165.08 : 135,210.74 = 40,211.03 : x
  2. Step 2: Convert to fraction form
    90,165.08/135,210.74 = 40,211.03/x
  3. Step 3: Cross multiply
    90,165.08x = 135,210.74 × 40,211.03
  4. Step 4: Simplify right side
    90,165.08x = 5,436,963,259.43
  5. Step 5: Solve for x
    x = 5,436,963,259.43/90,165.08
  6. Step 6: Final answer
    x = 60,300.10

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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.