Home / 103,178.12-154,498.38-56,334.92

Finding the Fourth Proportional to 103,178.12, 154,498.38 and 56,334.92

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Solution

The fourth proportional to 103,178.12, 154,498.38 and 56,334.92 is: 84,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,178.12 : 154,498.38 = 56,334.92 : x
  2. Step 2: Convert to fraction form
    103,178.12/154,498.38 = 56,334.92/x
  3. Step 3: Cross multiply
    103,178.12x = 154,498.38 × 56,334.92
  4. Step 4: Simplify right side
    103,178.12x = 8,703,653,877.43
  5. Step 5: Solve for x
    x = 8,703,653,877.43/103,178.12
  6. Step 6: Final answer
    x = 84,355.62

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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.