Home / 154,129.20-231,136.20-60,615.60

Finding the Fourth Proportional to 154,129.20, 231,136.20 and 60,615.60

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Solution

The fourth proportional to 154,129.20, 231,136.20 and 60,615.60 is: 90,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,129.20 : 231,136.20 = 60,615.60 : x
  2. Step 2: Convert to fraction form
    154,129.20/231,136.20 = 60,615.60/x
  3. Step 3: Cross multiply
    154,129.20x = 231,136.20 × 60,615.60
  4. Step 4: Simplify right side
    154,129.20x = 14,010,459,444.72
  5. Step 5: Solve for x
    x = 14,010,459,444.72/154,129.20
  6. Step 6: Final answer
    x = 90,900.75

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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.