Home / 137,575.30-189,869.74-91,632.40

Finding the Fourth Proportional to 137,575.30, 189,869.74 and 91,632.40

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Solution

The fourth proportional to 137,575.30, 189,869.74 and 91,632.40 is: 126,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,575.30 : 189,869.74 = 91,632.40 : x
  2. Step 2: Convert to fraction form
    137,575.30/189,869.74 = 91,632.40/x
  3. Step 3: Cross multiply
    137,575.30x = 189,869.74 × 91,632.40
  4. Step 4: Simplify right side
    137,575.30x = 17,398,219,963.58
  5. Step 5: Solve for x
    x = 17,398,219,963.58/137,575.30
  6. Step 6: Final answer
    x = 126,463.25

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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.