Home / 123,358.11-185,043.78-39,124.67

Finding the Fourth Proportional to 123,358.11, 185,043.78 and 39,124.67

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Solution

The fourth proportional to 123,358.11, 185,043.78 and 39,124.67 is: 58,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,358.11 : 185,043.78 = 39,124.67 : x
  2. Step 2: Convert to fraction form
    123,358.11/185,043.78 = 39,124.67/x
  3. Step 3: Cross multiply
    123,358.11x = 185,043.78 × 39,124.67
  4. Step 4: Simplify right side
    123,358.11x = 7,239,776,888.69
  5. Step 5: Solve for x
    x = 7,239,776,888.69/123,358.11
  6. Step 6: Final answer
    x = 58,689.10

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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.