Home / 135,295.07-186,707.51-74,869.83

Finding the Fourth Proportional to 135,295.07, 186,707.51 and 74,869.83

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Solution

The fourth proportional to 135,295.07, 186,707.51 and 74,869.83 is: 103,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,295.07 : 186,707.51 = 74,869.83 : x
  2. Step 2: Convert to fraction form
    135,295.07/186,707.51 = 74,869.83/x
  3. Step 3: Cross multiply
    135,295.07x = 186,707.51 × 74,869.83
  4. Step 4: Simplify right side
    135,295.07x = 13,978,759,159.07
  5. Step 5: Solve for x
    x = 13,978,759,159.07/135,295.07
  6. Step 6: Final answer
    x = 103,320.54

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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.