Home / 145,896.41-201,387.27-85,486.61

Finding the Fourth Proportional to 145,896.41, 201,387.27 and 85,486.61

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Solution

The fourth proportional to 145,896.41, 201,387.27 and 85,486.61 is: 118,000.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,896.41 : 201,387.27 = 85,486.61 : x
  2. Step 2: Convert to fraction form
    145,896.41/201,387.27 = 85,486.61/x
  3. Step 3: Cross multiply
    145,896.41x = 201,387.27 × 85,486.61
  4. Step 4: Simplify right side
    145,896.41x = 17,215,915,009.45
  5. Step 5: Solve for x
    x = 17,215,915,009.45/145,896.41
  6. Step 6: Final answer
    x = 118,000.95

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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.