Home / 137,275.68-189,558.66-86,373.24

Finding the Fourth Proportional to 137,275.68, 189,558.66 and 86,373.24

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Solution

The fourth proportional to 137,275.68, 189,558.66 and 86,373.24 is: 119,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,275.68 : 189,558.66 = 86,373.24 : x
  2. Step 2: Convert to fraction form
    137,275.68/189,558.66 = 86,373.24/x
  3. Step 3: Cross multiply
    137,275.68x = 189,558.66 × 86,373.24
  4. Step 4: Simplify right side
    137,275.68x = 16,372,795,634.26
  5. Step 5: Solve for x
    x = 16,372,795,634.26/137,275.68
  6. Step 6: Final answer
    x = 119,269.46

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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.