Home / 135,487.15-186,983.75-75,076.75

Finding the Fourth Proportional to 135,487.15, 186,983.75 and 75,076.75

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Solution

The fourth proportional to 135,487.15, 186,983.75 and 75,076.75 is: 103,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,487.15 : 186,983.75 = 75,076.75 : x
  2. Step 2: Convert to fraction form
    135,487.15/186,983.75 = 75,076.75/x
  3. Step 3: Cross multiply
    135,487.15x = 186,983.75 × 75,076.75
  4. Step 4: Simplify right side
    135,487.15x = 14,038,132,252.81
  5. Step 5: Solve for x
    x = 14,038,132,252.81/135,487.15
  6. Step 6: Final answer
    x = 103,612.28

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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.