Home / 133,034.16-183,618.66-76,478.40

Finding the Fourth Proportional to 133,034.16, 183,618.66 and 76,478.40

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Solution

The fourth proportional to 133,034.16, 183,618.66 and 76,478.40 is: 105,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,034.16 : 183,618.66 = 76,478.40 : x
  2. Step 2: Convert to fraction form
    133,034.16/183,618.66 = 76,478.40/x
  3. Step 3: Cross multiply
    133,034.16x = 183,618.66 × 76,478.40
  4. Step 4: Simplify right side
    133,034.16x = 14,042,861,326.94
  5. Step 5: Solve for x
    x = 14,042,861,326.94/133,034.16
  6. Step 6: Final answer
    x = 105,558.31

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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.