Home / 135,975.60-187,637.40-75,541.68

Finding the Fourth Proportional to 135,975.60, 187,637.40 and 75,541.68

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Solution

The fourth proportional to 135,975.60, 187,637.40 and 75,541.68 is: 104,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,975.60 : 187,637.40 = 75,541.68 : x
  2. Step 2: Convert to fraction form
    135,975.60/187,637.40 = 75,541.68/x
  3. Step 3: Cross multiply
    135,975.60x = 187,637.40 × 75,541.68
  4. Step 4: Simplify right side
    135,975.60x = 14,174,444,426.83
  5. Step 5: Solve for x
    x = 14,174,444,426.83/135,975.60
  6. Step 6: Final answer
    x = 104,242.56

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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.