Home / 125,065.11-187,409.34-75,090.54

Finding the Fourth Proportional to 125,065.11, 187,409.34 and 75,090.54

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Solution

The fourth proportional to 125,065.11, 187,409.34 and 75,090.54 is: 112,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,065.11 : 187,409.34 = 75,090.54 : x
  2. Step 2: Convert to fraction form
    125,065.11/187,409.34 = 75,090.54/x
  3. Step 3: Cross multiply
    125,065.11x = 187,409.34 × 75,090.54
  4. Step 4: Simplify right side
    125,065.11x = 14,072,668,541.64
  5. Step 5: Solve for x
    x = 14,072,668,541.64/125,065.11
  6. Step 6: Final answer
    x = 112,522.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.