Home / 154,247.20-231,457.20-65,485.60

Finding the Fourth Proportional to 154,247.20, 231,457.20 and 65,485.60

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Solution

The fourth proportional to 154,247.20, 231,457.20 and 65,485.60 is: 98,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,247.20 : 231,457.20 = 65,485.60 : x
  2. Step 2: Convert to fraction form
    154,247.20/231,457.20 = 65,485.60/x
  3. Step 3: Cross multiply
    154,247.20x = 231,457.20 × 65,485.60
  4. Step 4: Simplify right side
    154,247.20x = 15,157,113,616.32
  5. Step 5: Solve for x
    x = 15,157,113,616.32/154,247.20
  6. Step 6: Final answer
    x = 98,265.08

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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.