Home / 137,565.69-189,760.02-86,497.49

Finding the Fourth Proportional to 137,565.69, 189,760.02 and 86,497.49

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Solution

The fourth proportional to 137,565.69, 189,760.02 and 86,497.49 is: 119,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,565.69 : 189,760.02 = 86,497.49 : x
  2. Step 2: Convert to fraction form
    137,565.69/189,760.02 = 86,497.49/x
  3. Step 3: Cross multiply
    137,565.69x = 189,760.02 × 86,497.49
  4. Step 4: Simplify right side
    137,565.69x = 16,413,765,432.35
  5. Step 5: Solve for x
    x = 16,413,765,432.35/137,565.69
  6. Step 6: Final answer
    x = 119,315.84

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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.