Home / 124,735.32-172,316.88-107,939.16

Finding the Fourth Proportional to 124,735.32, 172,316.88 and 107,939.16

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Solution

The fourth proportional to 124,735.32, 172,316.88 and 107,939.16 is: 149,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,735.32 : 172,316.88 = 107,939.16 : x
  2. Step 2: Convert to fraction form
    124,735.32/172,316.88 = 107,939.16/x
  3. Step 3: Cross multiply
    124,735.32x = 172,316.88 × 107,939.16
  4. Step 4: Simplify right side
    124,735.32x = 18,599,739,281.02
  5. Step 5: Solve for x
    x = 18,599,739,281.02/124,735.32
  6. Step 6: Final answer
    x = 149,113.65

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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.