Home / 124,739.32-172,322.40-107,943.16

Finding the Fourth Proportional to 124,739.32, 172,322.40 and 107,943.16

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Solution

The fourth proportional to 124,739.32, 172,322.40 and 107,943.16 is: 149,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,739.32 : 172,322.40 = 107,943.16 : x
  2. Step 2: Convert to fraction form
    124,739.32/172,322.40 = 107,943.16/x
  3. Step 3: Cross multiply
    124,739.32x = 172,322.40 × 107,943.16
  4. Step 4: Simplify right side
    124,739.32x = 18,601,024,394.78
  5. Step 5: Solve for x
    x = 18,601,024,394.78/124,739.32
  6. Step 6: Final answer
    x = 149,119.17

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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.