Home / 150,861.08-208,158.83-86,350.05

Finding the Fourth Proportional to 150,861.08, 208,158.83 and 86,350.05

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Solution

The fourth proportional to 150,861.08, 208,158.83 and 86,350.05 is: 119,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,861.08 : 208,158.83 = 86,350.05 : x
  2. Step 2: Convert to fraction form
    150,861.08/208,158.83 = 86,350.05/x
  3. Step 3: Cross multiply
    150,861.08x = 208,158.83 × 86,350.05
  4. Step 4: Simplify right side
    150,861.08x = 17,974,525,378.44
  5. Step 5: Solve for x
    x = 17,974,525,378.44/150,861.08
  6. Step 6: Final answer
    x = 119,146.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.