Home / 154,421.60-231,632.40-43,613.60

Finding the Fourth Proportional to 154,421.60, 231,632.40 and 43,613.60

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Solution

The fourth proportional to 154,421.60, 231,632.40 and 43,613.60 is: 65,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.60 : 231,632.40 = 43,613.60 : x
  2. Step 2: Convert to fraction form
    154,421.60/231,632.40 = 43,613.60/x
  3. Step 3: Cross multiply
    154,421.60x = 231,632.40 × 43,613.60
  4. Step 4: Simplify right side
    154,421.60x = 10,102,322,840.64
  5. Step 5: Solve for x
    x = 10,102,322,840.64/154,421.60
  6. Step 6: Final answer
    x = 65,420.40

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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.