Home / 135,556.56-187,068.48-75,128.22

Finding the Fourth Proportional to 135,556.56, 187,068.48 and 75,128.22

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Solution

The fourth proportional to 135,556.56, 187,068.48 and 75,128.22 is: 103,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,556.56 : 187,068.48 = 75,128.22 : x
  2. Step 2: Convert to fraction form
    135,556.56/187,068.48 = 75,128.22/x
  3. Step 3: Cross multiply
    135,556.56x = 187,068.48 × 75,128.22
  4. Step 4: Simplify right side
    135,556.56x = 14,054,121,920.51
  5. Step 5: Solve for x
    x = 14,054,121,920.51/135,556.56
  6. Step 6: Final answer
    x = 103,677.18

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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.