Home / 131,783.72-181,887.36-103,046.60

Finding the Fourth Proportional to 131,783.72, 181,887.36 and 103,046.60

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Solution

The fourth proportional to 131,783.72, 181,887.36 and 103,046.60 is: 142,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,783.72 : 181,887.36 = 103,046.60 : x
  2. Step 2: Convert to fraction form
    131,783.72/181,887.36 = 103,046.60/x
  3. Step 3: Cross multiply
    131,783.72x = 181,887.36 × 103,046.60
  4. Step 4: Simplify right side
    131,783.72x = 18,742,874,030.98
  5. Step 5: Solve for x
    x = 18,742,874,030.98/131,783.72
  6. Step 6: Final answer
    x = 142,224.50

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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.