Home / 135,552.79-187,062.85-75,132.51

Finding the Fourth Proportional to 135,552.79, 187,062.85 and 75,132.51

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Solution

The fourth proportional to 135,552.79, 187,062.85 and 75,132.51 is: 103,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,552.79 : 187,062.85 = 75,132.51 : x
  2. Step 2: Convert to fraction form
    135,552.79/187,062.85 = 75,132.51/x
  3. Step 3: Cross multiply
    135,552.79x = 187,062.85 × 75,132.51
  4. Step 4: Simplify right side
    135,552.79x = 14,054,501,448.25
  5. Step 5: Solve for x
    x = 14,054,501,448.25/135,552.79
  6. Step 6: Final answer
    x = 103,682.86

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1.5x scale

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.