Home / 131,829.10-181,935.36-74,478.96

Finding the Fourth Proportional to 131,829.10, 181,935.36 and 74,478.96

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Solution

The fourth proportional to 131,829.10, 181,935.36 and 74,478.96 is: 102,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,829.10 : 181,935.36 = 74,478.96 : x
  2. Step 2: Convert to fraction form
    131,829.10/181,935.36 = 74,478.96/x
  3. Step 3: Cross multiply
    131,829.10x = 181,935.36 × 74,478.96
  4. Step 4: Simplify right side
    131,829.10x = 13,550,356,400.03
  5. Step 5: Solve for x
    x = 13,550,356,400.03/131,829.10
  6. Step 6: Final answer
    x = 102,787.29

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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.