Home / 124,749.56-172,156.98-68,164.68

Finding the Fourth Proportional to 124,749.56, 172,156.98 and 68,164.68

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Solution

The fourth proportional to 124,749.56, 172,156.98 and 68,164.68 is: 94,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,749.56 : 172,156.98 = 68,164.68 : x
  2. Step 2: Convert to fraction form
    124,749.56/172,156.98 = 68,164.68/x
  3. Step 3: Cross multiply
    124,749.56x = 172,156.98 × 68,164.68
  4. Step 4: Simplify right side
    124,749.56x = 11,735,025,451.47
  5. Step 5: Solve for x
    x = 11,735,025,451.47/124,749.56
  6. Step 6: Final answer
    x = 94,068.67

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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.