Home / 133,117.45-183,722.24-81,464.15

Finding the Fourth Proportional to 133,117.45, 183,722.24 and 81,464.15

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Solution

The fourth proportional to 133,117.45, 183,722.24 and 81,464.15 is: 112,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,117.45 : 183,722.24 = 81,464.15 : x
  2. Step 2: Convert to fraction form
    133,117.45/183,722.24 = 81,464.15/x
  3. Step 3: Cross multiply
    133,117.45x = 183,722.24 × 81,464.15
  4. Step 4: Simplify right side
    133,117.45x = 14,966,776,780.66
  5. Step 5: Solve for x
    x = 14,966,776,780.66/133,117.45
  6. Step 6: Final answer
    x = 112,432.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.