Home / 135,070.56-186,396.66-74,645.40

Finding the Fourth Proportional to 135,070.56, 186,396.66 and 74,645.40

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Solution

The fourth proportional to 135,070.56, 186,396.66 and 74,645.40 is: 103,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,070.56 : 186,396.66 = 74,645.40 : x
  2. Step 2: Convert to fraction form
    135,070.56/186,396.66 = 74,645.40/x
  3. Step 3: Cross multiply
    135,070.56x = 186,396.66 × 74,645.40
  4. Step 4: Simplify right side
    135,070.56x = 13,913,653,244.36
  5. Step 5: Solve for x
    x = 13,913,653,244.36/135,070.56
  6. Step 6: Final answer
    x = 103,010.26

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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.