Home / 135,804.48-187,412.24-74,555.72

Finding the Fourth Proportional to 135,804.48, 187,412.24 and 74,555.72

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Solution

The fourth proportional to 135,804.48, 187,412.24 and 74,555.72 is: 102,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,804.48 : 187,412.24 = 74,555.72 : x
  2. Step 2: Convert to fraction form
    135,804.48/187,412.24 = 74,555.72/x
  3. Step 3: Cross multiply
    135,804.48x = 187,412.24 × 74,555.72
  4. Step 4: Simplify right side
    135,804.48x = 13,972,654,490.01
  5. Step 5: Solve for x
    x = 13,972,654,490.01/135,804.48
  6. Step 6: Final answer
    x = 102,888.02

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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.