Home / 154,630.78-231,946.32-42,302.68

Finding the Fourth Proportional to 154,630.78, 231,946.32 and 42,302.68

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Solution

The fourth proportional to 154,630.78, 231,946.32 and 42,302.68 is: 63,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,630.78 : 231,946.32 = 42,302.68 : x
  2. Step 2: Convert to fraction form
    154,630.78/231,946.32 = 42,302.68/x
  3. Step 3: Cross multiply
    154,630.78x = 231,946.32 × 42,302.68
  4. Step 4: Simplify right side
    154,630.78x = 9,811,950,952.14
  5. Step 5: Solve for x
    x = 9,811,950,952.14/154,630.78
  6. Step 6: Final answer
    x = 63,454.06

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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.