Home / 137,429.23-189,568.51-90,861.93

Finding the Fourth Proportional to 137,429.23, 189,568.51 and 90,861.93

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Solution

The fourth proportional to 137,429.23, 189,568.51 and 90,861.93 is: 125,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,429.23 : 189,568.51 = 90,861.93 : x
  2. Step 2: Convert to fraction form
    137,429.23/189,568.51 = 90,861.93/x
  3. Step 3: Cross multiply
    137,429.23x = 189,568.51 × 90,861.93
  4. Step 4: Simplify right side
    137,429.23x = 17,224,560,685.82
  5. Step 5: Solve for x
    x = 17,224,560,685.82/137,429.23
  6. Step 6: Final answer
    x = 125,334.04

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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.