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Finding the Fourth Proportional to 131,597.69, 181,391.52 and 102,866.58

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Solution

The fourth proportional to 131,597.69, 181,391.52 and 102,866.58 is: 141,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,597.69 : 181,391.52 = 102,866.58 : x
  2. Step 2: Convert to fraction form
    131,597.69/181,391.52 = 102,866.58/x
  3. Step 3: Cross multiply
    131,597.69x = 181,391.52 × 102,866.58
  4. Step 4: Simplify right side
    131,597.69x = 18,659,125,303.40
  5. Step 5: Solve for x
    x = 18,659,125,303.40/131,597.69
  6. Step 6: Final answer
    x = 141,789.16

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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.