Home / 131,580.41-181,568.13-74,228.77

Finding the Fourth Proportional to 131,580.41, 181,568.13 and 74,228.77

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Solution

The fourth proportional to 131,580.41, 181,568.13 and 74,228.77 is: 102,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,580.41 : 181,568.13 = 74,228.77 : x
  2. Step 2: Convert to fraction form
    131,580.41/181,568.13 = 74,228.77/x
  3. Step 3: Cross multiply
    131,580.41x = 181,568.13 × 74,228.77
  4. Step 4: Simplify right side
    131,580.41x = 13,477,578,961.10
  5. Step 5: Solve for x
    x = 13,477,578,961.10/131,580.41
  6. Step 6: Final answer
    x = 102,428.46

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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.