Home / 113,501.28-156,629.48-71,083.20

Finding the Fourth Proportional to 113,501.28, 156,629.48 and 71,083.20

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Solution

The fourth proportional to 113,501.28, 156,629.48 and 71,083.20 is: 98,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,501.28 : 156,629.48 = 71,083.20 : x
  2. Step 2: Convert to fraction form
    113,501.28/156,629.48 = 71,083.20/x
  3. Step 3: Cross multiply
    113,501.28x = 156,629.48 × 71,083.20
  4. Step 4: Simplify right side
    113,501.28x = 11,133,724,652.74
  5. Step 5: Solve for x
    x = 11,133,724,652.74/113,501.28
  6. Step 6: Final answer
    x = 98,093.38

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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.