Home / 131,316.56-181,209.40-77,606.58

Finding the Fourth Proportional to 131,316.56, 181,209.40 and 77,606.58

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Solution

The fourth proportional to 131,316.56, 181,209.40 and 77,606.58 is: 107,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316.56 : 181,209.40 = 77,606.58 : x
  2. Step 2: Convert to fraction form
    131,316.56/181,209.40 = 77,606.58/x
  3. Step 3: Cross multiply
    131,316.56x = 181,209.40 × 77,606.58
  4. Step 4: Simplify right side
    131,316.56x = 14,063,041,797.85
  5. Step 5: Solve for x
    x = 14,063,041,797.85/131,316.56
  6. Step 6: Final answer
    x = 107,092.68

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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.