Home / 154,055.20-231,082.80-145,501.60

Finding the Fourth Proportional to 154,055.20, 231,082.80 and 145,501.60

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Solution

The fourth proportional to 154,055.20, 231,082.80 and 145,501.60 is: 218,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,055.20 : 231,082.80 = 145,501.60 : x
  2. Step 2: Convert to fraction form
    154,055.20/231,082.80 = 145,501.60/x
  3. Step 3: Cross multiply
    154,055.20x = 231,082.80 × 145,501.60
  4. Step 4: Simplify right side
    154,055.20x = 33,622,917,132.48
  5. Step 5: Solve for x
    x = 33,622,917,132.48/154,055.20
  6. Step 6: Final answer
    x = 218,252.40

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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.