Home / 131,483.14-181,534.23-77,785.36

Finding the Fourth Proportional to 131,483.14, 181,534.23 and 77,785.36

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Solution

The fourth proportional to 131,483.14, 181,534.23 and 77,785.36 is: 107,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,483.14 : 181,534.23 = 77,785.36 : x
  2. Step 2: Convert to fraction form
    131,483.14/181,534.23 = 77,785.36/x
  3. Step 3: Cross multiply
    131,483.14x = 181,534.23 × 77,785.36
  4. Step 4: Simplify right side
    131,483.14x = 14,120,705,432.87
  5. Step 5: Solve for x
    x = 14,120,705,432.87/131,483.14
  6. Step 6: Final answer
    x = 107,395.56

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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.