Home / 135,547.70-187,056.31-75,119.37

Finding the Fourth Proportional to 135,547.70, 187,056.31 and 75,119.37

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Solution

The fourth proportional to 135,547.70, 187,056.31 and 75,119.37 is: 103,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,547.70 : 187,056.31 = 75,119.37 : x
  2. Step 2: Convert to fraction form
    135,547.70/187,056.31 = 75,119.37/x
  3. Step 3: Cross multiply
    135,547.70x = 187,056.31 × 75,119.37
  4. Step 4: Simplify right side
    135,547.70x = 14,051,552,161.72
  5. Step 5: Solve for x
    x = 14,051,552,161.72/135,547.70
  6. Step 6: Final answer
    x = 103,665.00

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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.