Home / 135,416.55-186,875.01-74,162.46

Finding the Fourth Proportional to 135,416.55, 186,875.01 and 74,162.46

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Solution

The fourth proportional to 135,416.55, 186,875.01 and 74,162.46 is: 102,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,416.55 : 186,875.01 = 74,162.46 : x
  2. Step 2: Convert to fraction form
    135,416.55/186,875.01 = 74,162.46/x
  3. Step 3: Cross multiply
    135,416.55x = 186,875.01 × 74,162.46
  4. Step 4: Simplify right side
    135,416.55x = 13,859,110,454.12
  5. Step 5: Solve for x
    x = 13,859,110,454.12/135,416.55
  6. Step 6: Final answer
    x = 102,344.29

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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.