Home / 124,890.56-172,351.52-68,305.60

Finding the Fourth Proportional to 124,890.56, 172,351.52 and 68,305.60

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Solution

The fourth proportional to 124,890.56, 172,351.52 and 68,305.60 is: 94,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.56 : 172,351.52 = 68,305.60 : x
  2. Step 2: Convert to fraction form
    124,890.56/172,351.52 = 68,305.60/x
  3. Step 3: Cross multiply
    124,890.56x = 172,351.52 × 68,305.60
  4. Step 4: Simplify right side
    124,890.56x = 11,772,573,984.51
  5. Step 5: Solve for x
    x = 11,772,573,984.51/124,890.56
  6. Step 6: Final answer
    x = 94,263.12

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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.