Home / 154,693.88-231,908.48-70,423.91

Finding the Fourth Proportional to 154,693.88, 231,908.48 and 70,423.91

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Solution

The fourth proportional to 154,693.88, 231,908.48 and 70,423.91 is: 105,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,693.88 : 231,908.48 = 70,423.91 : x
  2. Step 2: Convert to fraction form
    154,693.88/231,908.48 = 70,423.91/x
  3. Step 3: Cross multiply
    154,693.88x = 231,908.48 × 70,423.91
  4. Step 4: Simplify right side
    154,693.88x = 16,331,901,571.64
  5. Step 5: Solve for x
    x = 16,331,901,571.64/154,693.88
  6. Step 6: Final answer
    x = 105,575.62

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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.