Home / 138,101.60-207,156.72-44,608.16

Finding the Fourth Proportional to 138,101.60, 207,156.72 and 44,608.16

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Solution

The fourth proportional to 138,101.60, 207,156.72 and 44,608.16 is: 66,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,101.60 : 207,156.72 = 44,608.16 : x
  2. Step 2: Convert to fraction form
    138,101.60/207,156.72 = 44,608.16/x
  3. Step 3: Cross multiply
    138,101.60x = 207,156.72 × 44,608.16
  4. Step 4: Simplify right side
    138,101.60x = 9,240,880,110.84
  5. Step 5: Solve for x
    x = 9,240,880,110.84/138,101.60
  6. Step 6: Final answer
    x = 66,913.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.