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Finding the Fourth Proportional to 131,282.94, 181,097.50 and 86,033.91

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Solution

The fourth proportional to 131,282.94, 181,097.50 and 86,033.91 is: 118,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,282.94 : 181,097.50 = 86,033.91 : x
  2. Step 2: Convert to fraction form
    131,282.94/181,097.50 = 86,033.91/x
  3. Step 3: Cross multiply
    131,282.94x = 181,097.50 × 86,033.91
  4. Step 4: Simplify right side
    131,282.94x = 15,580,526,016.23
  5. Step 5: Solve for x
    x = 15,580,526,016.23/131,282.94
  6. Step 6: Final answer
    x = 118,678.98

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1.5x scale

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.