Home / 125,506.07-187,788.56-74,719.34

Finding the Fourth Proportional to 125,506.07, 187,788.56 and 74,719.34

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Solution

The fourth proportional to 125,506.07, 187,788.56 and 74,719.34 is: 111,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,506.07 : 187,788.56 = 74,719.34 : x
  2. Step 2: Convert to fraction form
    125,506.07/187,788.56 = 74,719.34/x
  3. Step 3: Cross multiply
    125,506.07x = 187,788.56 × 74,719.34
  4. Step 4: Simplify right side
    125,506.07x = 14,031,435,950.21
  5. Step 5: Solve for x
    x = 14,031,435,950.21/125,506.07
  6. Step 6: Final answer
    x = 111,798.87

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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.