Home / 116,431.16-160,581.02-78,179.18

Finding the Fourth Proportional to 116,431.16, 160,581.02 and 78,179.18

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Solution

The fourth proportional to 116,431.16, 160,581.02 and 78,179.18 is: 107,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,431.16 : 160,581.02 = 78,179.18 : x
  2. Step 2: Convert to fraction form
    116,431.16/160,581.02 = 78,179.18/x
  3. Step 3: Cross multiply
    116,431.16x = 160,581.02 × 78,179.18
  4. Step 4: Simplify right side
    116,431.16x = 12,554,091,273.36
  5. Step 5: Solve for x
    x = 12,554,091,273.36/116,431.16
  6. Step 6: Final answer
    x = 107,824.16

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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.