Home / 124,703.32-172,272.72-107,907.16

Finding the Fourth Proportional to 124,703.32, 172,272.72 and 107,907.16

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Solution

The fourth proportional to 124,703.32, 172,272.72 and 107,907.16 is: 149,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,703.32 : 172,272.72 = 107,907.16 : x
  2. Step 2: Convert to fraction form
    124,703.32/172,272.72 = 107,907.16/x
  3. Step 3: Cross multiply
    124,703.32x = 172,272.72 × 107,907.16
  4. Step 4: Simplify right side
    124,703.32x = 18,589,459,960.68
  5. Step 5: Solve for x
    x = 18,589,459,960.68/124,703.32
  6. Step 6: Final answer
    x = 149,069.49

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1.5x scale

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.