Home / 127,766.16-176,313.24-80,045.28

Finding the Fourth Proportional to 127,766.16, 176,313.24 and 80,045.28

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Solution

The fourth proportional to 127,766.16, 176,313.24 and 80,045.28 is: 110,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766.16 : 176,313.24 = 80,045.28 : x
  2. Step 2: Convert to fraction form
    127,766.16/176,313.24 = 80,045.28/x
  3. Step 3: Cross multiply
    127,766.16x = 176,313.24 × 80,045.28
  4. Step 4: Simplify right side
    127,766.16x = 14,113,042,663.51
  5. Step 5: Solve for x
    x = 14,113,042,663.51/127,766.16
  6. Step 6: Final answer
    x = 110,459.94

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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.