Home / 312,736.16-469,104.40-76,077.36

Finding the Fourth Proportional to 312,736.16, 469,104.40 and 76,077.36

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Solution

The fourth proportional to 312,736.16, 469,104.40 and 76,077.36 is: 114,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,736.16 : 469,104.40 = 76,077.36 : x
  2. Step 2: Convert to fraction form
    312,736.16/469,104.40 = 76,077.36/x
  3. Step 3: Cross multiply
    312,736.16x = 469,104.40 × 76,077.36
  4. Step 4: Simplify right side
    312,736.16x = 35,688,224,316.38
  5. Step 5: Solve for x
    x = 35,688,224,316.38/312,736.16
  6. Step 6: Final answer
    x = 114,116.08

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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.