Home / 123,572.80-185,357.68-30,079.36

Finding the Fourth Proportional to 123,572.80, 185,357.68 and 30,079.36

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Solution

The fourth proportional to 123,572.80, 185,357.68 and 30,079.36 is: 45,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,572.80 : 185,357.68 = 30,079.36 : x
  2. Step 2: Convert to fraction form
    123,572.80/185,357.68 = 30,079.36/x
  3. Step 3: Cross multiply
    123,572.80x = 185,357.68 × 30,079.36
  4. Step 4: Simplify right side
    123,572.80x = 5,575,440,385.48
  5. Step 5: Solve for x
    x = 5,575,440,385.48/123,572.80
  6. Step 6: Final answer
    x = 45,118.67

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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.