Home / 137,168.74-189,357.57-103,190.16

Finding the Fourth Proportional to 137,168.74, 189,357.57 and 103,190.16

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Solution

The fourth proportional to 137,168.74, 189,357.57 and 103,190.16 is: 142,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,168.74 : 189,357.57 = 103,190.16 : x
  2. Step 2: Convert to fraction form
    137,168.74/189,357.57 = 103,190.16/x
  3. Step 3: Cross multiply
    137,168.74x = 189,357.57 × 103,190.16
  4. Step 4: Simplify right side
    137,168.74x = 19,539,837,429.56
  5. Step 5: Solve for x
    x = 19,539,837,429.56/137,168.74
  6. Step 6: Final answer
    x = 142,451.10

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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.