Home / 125,139.54-187,707.66-30,370.41

Finding the Fourth Proportional to 125,139.54, 187,707.66 and 30,370.41

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Solution

The fourth proportional to 125,139.54, 187,707.66 and 30,370.41 is: 45,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,139.54 : 187,707.66 = 30,370.41 : x
  2. Step 2: Convert to fraction form
    125,139.54/187,707.66 = 30,370.41/x
  3. Step 3: Cross multiply
    125,139.54x = 187,707.66 × 30,370.41
  4. Step 4: Simplify right side
    125,139.54x = 5,700,758,594.34
  5. Step 5: Solve for x
    x = 5,700,758,594.34/125,139.54
  6. Step 6: Final answer
    x = 45,555.21

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1.5x scale

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.